diff --git a/app/Audit/ConcreteFormatters/SummitDocumentAuditLogFormatter.php b/app/Audit/ConcreteFormatters/SummitDocumentAuditLogFormatter.php
new file mode 100644
index 000000000..bdb64cd28
--- /dev/null
+++ b/app/Audit/ConcreteFormatters/SummitDocumentAuditLogFormatter.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Audit\ConcreteFormatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\AbstractAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use models\summit\SummitDocument;
+use Illuminate\Support\Facades\Log;
+
+class SummitDocumentAuditLogFormatter extends AbstractAuditLogFormatter
+{
+    public function format($subject, array $change_set): ?string
+    {
+        if (!$subject instanceof SummitDocument) {
+            return null;
+        }
+
+        try {
+            $name = $subject->getName() ?? 'Unknown Document';
+            $id = $subject->getId() ?? 'unknown';
+            $label = $subject->getLabel() ?? $name;
+            $summit = $subject->getSummit();
+            $summit_name = $summit ? ($summit->getName() ?? 'Unknown Summit') : 'Unknown Summit';
+
+            switch ($this->event_type) {
+                case IAuditStrategy::EVENT_ENTITY_CREATION:
+                    return sprintf(
+                        "Summit Document '%s' (%d) created for Summit '%s' with label '%s' by user %s",
+                        $name,
+                        $id,
+                        $summit_name,
+                        $label,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_UPDATE:
+                    $change_details = $this->buildChangeDetails($change_set);
+                    return sprintf(
+                        "Summit Document '%s' (%d) for Summit '%s' updated: %s by user %s",
+                        $name,
+                        $id,
+                        $summit_name,
+                        $change_details,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_DELETION:
+                    return sprintf(
+                        "Summit Document '%s' (%d) for Summit '%s' was deleted by user %s",
+                        $name,
+                        $id,
+                        $summit_name,
+                        $this->getUserInfo()
+                    );
+            }
+        } catch (\Exception $ex) {
+            Log::warning("SummitDocumentAuditLogFormatter error: " . $ex->getMessage());
+        }
+
+        return null;
+    }
+}
diff --git a/app/Audit/ConcreteFormatters/SummitScheduleConfigAuditLogFormatter.php b/app/Audit/ConcreteFormatters/SummitScheduleConfigAuditLogFormatter.php
new file mode 100644
index 000000000..55eae585d
--- /dev/null
+++ b/app/Audit/ConcreteFormatters/SummitScheduleConfigAuditLogFormatter.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace App\Audit\ConcreteFormatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\AbstractAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use models\summit\SummitScheduleConfig;
+use Illuminate\Support\Facades\Log;
+
+class SummitScheduleConfigAuditLogFormatter extends AbstractAuditLogFormatter
+{
+    public function format($subject, array $change_set): ?string
+    {
+        if (!$subject instanceof SummitScheduleConfig) {
+            return null;
+        }
+
+        try {
+            $key = $subject->getKey() ?? 'Unknown Config';
+            $id = $subject->getId() ?? 'unknown';
+            $summit = $subject->getSummit();
+            $summit_name = $summit ? ($summit->getName() ?? 'Unknown Summit') : 'Unknown Summit';
+            $is_default = $subject->getIsDefault() ? 'default' : 'non-default';
+            $color_source = $subject->getColorSource() ?? 'Unknown';
+
+            switch ($this->event_type) {
+                case IAuditStrategy::EVENT_ENTITY_CREATION:
+                    return sprintf(
+                        "Schedule Config '%s' (%d) created for Summit '%s' (%s, color source: %s) by user %s",
+                        $key,
+                        $id,
+                        $summit_name,
+                        $is_default,
+                        $color_source,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_UPDATE:
+                    $change_details = $this->buildChangeDetails($change_set);
+                    return sprintf(
+                        "Schedule Config '%s' (%d) for Summit '%s' updated: %s by user %s",
+                        $key,
+                        $id,
+                        $summit_name,
+                        $change_details,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_DELETION:
+                    return sprintf(
+                        "Schedule Config '%s' (%d) for Summit '%s' was deleted by user %s",
+                        $key,
+                        $id,
+                        $summit_name,
+                        $this->getUserInfo()
+                    );
+            }
+        } catch (\Exception $ex) {
+            Log::warning("SummitScheduleConfigAuditLogFormatter error: " . $ex->getMessage());
+        }
+
+        return null;
+    }
+}
diff --git a/app/Audit/ConcreteFormatters/SummitSchedulePreFilterElementConfigAuditLogFormatter.php b/app/Audit/ConcreteFormatters/SummitSchedulePreFilterElementConfigAuditLogFormatter.php
new file mode 100644
index 000000000..ac9fbac28
--- /dev/null
+++ b/app/Audit/ConcreteFormatters/SummitSchedulePreFilterElementConfigAuditLogFormatter.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace App\Audit\ConcreteFormatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\AbstractAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use models\summit\SummitSchedulePreFilterElementConfig;
+use Illuminate\Support\Facades\Log;
+
+class SummitSchedulePreFilterElementConfigAuditLogFormatter extends AbstractAuditLogFormatter
+{
+    public function format($subject, array $change_set): ?string
+    {
+        if (!$subject instanceof SummitSchedulePreFilterElementConfig) {
+            return null;
+        }
+
+        try {
+            $id = $subject->getId() ?? 'unknown';
+            $type = $subject->getType() ?? 'Unknown Type';
+            
+            $schedule_config = $subject->getConfig();
+            $config_key = $schedule_config ? ($schedule_config->getKey() ?? 'Unknown Config') : 'Unknown Config';
+
+            switch ($this->event_type) {
+                case IAuditStrategy::EVENT_ENTITY_CREATION:
+                    return sprintf(
+                        "Schedule Pre-Filter Element Config (%d) created for Config '%s' with type '%s' by user %s",
+                        $id,
+                        $config_key,
+                        $type,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_UPDATE:
+                    $change_details = $this->buildChangeDetails($change_set);
+                    return sprintf(
+                        "Schedule Pre-Filter Element Config (%d) for Config '%s' updated: %s by user %s",
+                        $id,
+                        $config_key,
+                        $change_details,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_DELETION:
+                    return sprintf(
+                        "Schedule Pre-Filter Element Config (%d) for Config '%s' was deleted by user %s",
+                        $id,
+                        $config_key,
+                        $this->getUserInfo()
+                    );
+            }
+        } catch (\Exception $ex) {
+            Log::warning("SummitSchedulePreFilterElementConfigAuditLogFormatter error: " . $ex->getMessage());
+        }
+
+        return null;
+    }
+}
diff --git a/app/Audit/ConcreteFormatters/SummitSignAuditLogFormatter.php b/app/Audit/ConcreteFormatters/SummitSignAuditLogFormatter.php
new file mode 100644
index 000000000..19c2d66ac
--- /dev/null
+++ b/app/Audit/ConcreteFormatters/SummitSignAuditLogFormatter.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace App\Audit\ConcreteFormatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\AbstractAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use App\Models\Foundation\Summit\Signs\SummitSign;
+use Illuminate\Support\Facades\Log;
+
+class SummitSignAuditLogFormatter extends AbstractAuditLogFormatter
+{
+    public function format($subject, array $change_set): ?string
+    {
+        if (!$subject instanceof SummitSign) {
+            return null;
+        }
+
+        try {
+            $id = $subject->getId() ?? 'unknown';
+            $template = $subject->getTemplate() ?? 'Unknown Template';
+            $location = $subject->getLocation();
+            $location_name = $location ? ($location->getName() ?? 'Unknown Location') : 'No Location';
+            $summit = $subject->getSummit();
+            $summit_name = $summit ? ($summit->getName() ?? 'Unknown Summit') : 'Unknown Summit';
+
+            switch ($this->event_type) {
+                case IAuditStrategy::EVENT_ENTITY_CREATION:
+                    return sprintf(
+                        "Summit Sign (%d) created for Summit '%s' at Location '%s' with template '%s' by user %s",
+                        $id,
+                        $summit_name,
+                        $location_name,
+                        $template,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_UPDATE:
+                    $change_details = $this->buildChangeDetails($change_set);
+                    return sprintf(
+                        "Summit Sign (%d) for Summit '%s' at Location '%s' updated: %s by user %s",
+                        $id,
+                        $summit_name,
+                        $location_name,
+                        $change_details,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_DELETION:
+                    return sprintf(
+                        "Summit Sign (%d) for Summit '%s' at Location '%s' was deleted by user %s",
+                        $id,
+                        $summit_name,
+                        $location_name,
+                        $this->getUserInfo()
+                    );
+            }
+        } catch (\Exception $ex) {
+            Log::warning("SummitSignAuditLogFormatter error: " . $ex->getMessage());
+        }
+
+        return null;
+    }
+}
diff --git a/app/Audit/ConcreteFormatters/TrackTagGroupAuditLogFormatter.php b/app/Audit/ConcreteFormatters/TrackTagGroupAuditLogFormatter.php
new file mode 100644
index 000000000..b4009265d
--- /dev/null
+++ b/app/Audit/ConcreteFormatters/TrackTagGroupAuditLogFormatter.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Audit\ConcreteFormatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\AbstractAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use App\Models\Foundation\Summit\TrackTagGroup;
+use Illuminate\Support\Facades\Log;
+
+class TrackTagGroupAuditLogFormatter extends AbstractAuditLogFormatter
+{
+    public function format($subject, array $change_set): ?string
+    {
+        if (!$subject instanceof TrackTagGroup) {
+            return null;
+        }
+
+        try {
+            $name = $subject->getName() ?? 'Unknown Tag Group';
+            $id = $subject->getId() ?? 'unknown';
+            $label = $subject->getLabel() ?? $name;
+            $summit = $subject->getSummit();
+            $summit_name = $summit ? ($summit->getName() ?? 'Unknown Summit') : 'Unknown Summit';
+
+            switch ($this->event_type) {
+                case IAuditStrategy::EVENT_ENTITY_CREATION:
+                    return sprintf(
+                        "Track Tag Group '%s' (%d) created for Summit '%s' with label '%s' by user %s",
+                        $name,
+                        $id,
+                        $summit_name,
+                        $label,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_UPDATE:
+                    $change_details = $this->buildChangeDetails($change_set);
+                    return sprintf(
+                        "Track Tag Group '%s' (%d) for Summit '%s' updated: %s by user %s",
+                        $name,
+                        $id,
+                        $summit_name,
+                        $change_details,
+                        $this->getUserInfo()
+                    );
+
+                case IAuditStrategy::EVENT_ENTITY_DELETION:
+                    return sprintf(
+                        "Track Tag Group '%s' (%d) for Summit '%s' was deleted by user %s",
+                        $name,
+                        $id,
+                        $summit_name,
+                        $this->getUserInfo()
+                    );
+            }
+        } catch (\Exception $ex) {
+            Log::warning("TrackTagGroupAuditLogFormatter error: " . $ex->getMessage());
+        }
+
+        return null;
+    }
+}
diff --git a/config/audit_log.php b/config/audit_log.php
index 2e416a283..70489c6de 100644
--- a/config/audit_log.php
+++ b/config/audit_log.php
@@ -240,5 +240,25 @@
             'enabled' => true,
             'strategy' => \App\Audit\ConcreteFormatters\ExtraQuestionTypeValueAuditLogFormatter::class,
         ],
+        \models\summit\SummitDocument::class => [
+            'enabled' => true,
+            'strategy' => \App\Audit\ConcreteFormatters\SummitDocumentAuditLogFormatter::class,
+        ],
+        \models\summit\SummitScheduleConfig::class => [
+            'enabled' => true,
+            'strategy' => \App\Audit\ConcreteFormatters\SummitScheduleConfigAuditLogFormatter::class,
+        ],
+        \models\summit\SummitSchedulePreFilterElementConfig::class => [
+            'enabled' => true,
+            'strategy' => \App\Audit\ConcreteFormatters\SummitSchedulePreFilterElementConfigAuditLogFormatter::class,
+        ],
+        \App\Models\Foundation\Summit\Signs\SummitSign::class => [
+            'enabled' => true,
+            'strategy' => \App\Audit\ConcreteFormatters\SummitSignAuditLogFormatter::class,
+        ],
+        \App\Models\Foundation\Summit\TrackTagGroup::class => [
+            'enabled' => true,
+            'strategy' => \App\Audit\ConcreteFormatters\TrackTagGroupAuditLogFormatter::class,
+        ],
     ]
 ];
diff --git a/tests/OpenTelemetry/Formatters/SummitDocumentAuditLogFormatterTest.php b/tests/OpenTelemetry/Formatters/SummitDocumentAuditLogFormatterTest.php
new file mode 100644
index 000000000..33b26c0e0
--- /dev/null
+++ b/tests/OpenTelemetry/Formatters/SummitDocumentAuditLogFormatterTest.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Tests\OpenTelemetry\Formatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\ConcreteFormatters\SummitDocumentAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use Tests\OpenTelemetry\Formatters\Support\AuditContextBuilder;
+use Mockery;
+use Tests\TestCase;
+
+class SummitDocumentAuditLogFormatterTest extends TestCase
+{
+    private const SUMMIT_NAME = 'OpenStack Summit 2024';
+    private const DOCUMENT_ID = 123;
+    private const DOCUMENT_NAME = 'Summit Guidelines';
+    private const DOCUMENT_LABEL = 'Important Document';
+
+    private mixed $mockSubject;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->mockSubject = $this->createMockSubject();
+    }
+
+    protected function tearDown(): void
+    {
+        Mockery::close();
+        parent::tearDown();
+    }
+
+    private function createMockSubject(): mixed
+    {
+        $mockSummit = Mockery::mock('models\summit\Summit');
+        $mockSummit->shouldReceive('getName')->andReturn(self::SUMMIT_NAME);
+        
+        $mock = Mockery::mock('models\summit\SummitDocument');
+        
+        // Configure return values
+        $mock->shouldReceive('getId')->andReturn(self::DOCUMENT_ID);
+        $mock->shouldReceive('getName')->andReturn(self::DOCUMENT_NAME);
+        $mock->shouldReceive('getLabel')->andReturn(self::DOCUMENT_LABEL);
+        $mock->shouldReceive('getSummit')->andReturn($mockSummit);
+        
+        return $mock;
+    }
+
+    public function testSubjectCreationAuditMessage(): void
+    {
+        $formatter = new SummitDocumentAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('created', $result);
+        $this->assertStringContainsString(self::DOCUMENT_NAME, $result);
+        $this->assertStringContainsString(self::DOCUMENT_LABEL, $result);
+        $this->assertStringContainsString((string)self::DOCUMENT_ID, $result);
+    }
+
+    public function testSubjectUpdateAuditMessage(): void
+    {
+        $formatter = new SummitDocumentAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_UPDATE);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $changeSet = [
+            'name' => [self::DOCUMENT_NAME, 'Summit Rules'],
+            'label' => [self::DOCUMENT_LABEL, 'Critical Document']
+        ];
+        
+        $result = $formatter->format($this->mockSubject, $changeSet);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('updated', $result);
+    }
+
+    public function testSubjectDeletionAuditMessage(): void
+    {
+        $formatter = new SummitDocumentAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_DELETION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('deleted', $result);
+    }
+
+    public function testFormatterReturnsNullForInvalidSubject(): void
+    {
+        $formatter = new SummitDocumentAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format(new \stdClass(), []);
+        $this->assertNull($result);
+    }
+}
diff --git a/tests/OpenTelemetry/Formatters/SummitScheduleConfigAuditLogFormatterTest.php b/tests/OpenTelemetry/Formatters/SummitScheduleConfigAuditLogFormatterTest.php
new file mode 100644
index 000000000..b0dfc22b2
--- /dev/null
+++ b/tests/OpenTelemetry/Formatters/SummitScheduleConfigAuditLogFormatterTest.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace Tests\OpenTelemetry\Formatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\ConcreteFormatters\SummitScheduleConfigAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use Tests\OpenTelemetry\Formatters\Support\AuditContextBuilder;
+use Mockery;
+use Tests\TestCase;
+
+class SummitScheduleConfigAuditLogFormatterTest extends TestCase
+{
+    private const SUMMIT_NAME = 'OpenStack Summit 2024';
+    private const CONFIG_ID = 456;
+    private const CONFIG_KEY = 'main_schedule';
+    private const CONFIG_IS_DEFAULT = true;
+    private const CONFIG_COLOR_SOURCE = 'EVENT_TYPES';
+    private const ALTERNATE_CONFIG_KEY = 'alternate_schedule';
+    private const ALTERNATE_COLOR_SOURCE = 'TRACK';
+
+    private mixed $mockSubject;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->mockSubject = $this->createMockSubject();
+    }
+
+    protected function tearDown(): void
+    {
+        Mockery::close();
+        parent::tearDown();
+    }
+
+    private function createMockSubject(): mixed
+    {
+        $mockSummit = Mockery::mock('models\summit\Summit');
+        $mockSummit->shouldReceive('getName')->andReturn(self::SUMMIT_NAME);
+        
+        $mock = Mockery::mock('models\summit\SummitScheduleConfig');
+        
+        // Configure return values
+        $mock->shouldReceive('getId')->andReturn(self::CONFIG_ID);
+        $mock->shouldReceive('getKey')->andReturn(self::CONFIG_KEY);
+        $mock->shouldReceive('getIsDefault')->andReturn(self::CONFIG_IS_DEFAULT);
+        $mock->shouldReceive('getColorSource')->andReturn(self::CONFIG_COLOR_SOURCE);
+        $mock->shouldReceive('getSummit')->andReturn($mockSummit);
+        
+        return $mock;
+    }
+
+    public function testSubjectCreationAuditMessage(): void
+    {
+        $formatter = new SummitScheduleConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('created', $result);
+        $this->assertStringContainsString(self::CONFIG_KEY, $result);
+        $this->assertStringContainsString((string)self::CONFIG_ID, $result);
+        $this->assertStringContainsString('default', $result);
+    }
+
+    public function testSubjectUpdateAuditMessage(): void
+    {
+        $formatter = new SummitScheduleConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_UPDATE);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $changeSet = [
+            'key' => [self::CONFIG_KEY, self::ALTERNATE_CONFIG_KEY],
+            'color_source' => [self::CONFIG_COLOR_SOURCE, self::ALTERNATE_COLOR_SOURCE]
+        ];
+        
+        $result = $formatter->format($this->mockSubject, $changeSet);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('updated', $result);
+    }
+
+    public function testSubjectDeletionAuditMessage(): void
+    {
+        $formatter = new SummitScheduleConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_DELETION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('deleted', $result);
+    }
+
+    public function testFormatterReturnsNullForInvalidSubject(): void
+    {
+        $formatter = new SummitScheduleConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format(new \stdClass(), []);
+        $this->assertNull($result);
+    }
+}
diff --git a/tests/OpenTelemetry/Formatters/SummitSchedulePreFilterElementConfigAuditLogFormatterTest.php b/tests/OpenTelemetry/Formatters/SummitSchedulePreFilterElementConfigAuditLogFormatterTest.php
new file mode 100644
index 000000000..c2e10fd37
--- /dev/null
+++ b/tests/OpenTelemetry/Formatters/SummitSchedulePreFilterElementConfigAuditLogFormatterTest.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Tests\OpenTelemetry\Formatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\ConcreteFormatters\SummitSchedulePreFilterElementConfigAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use Tests\OpenTelemetry\Formatters\Support\AuditContextBuilder;
+use Mockery;
+use Tests\TestCase;
+
+class SummitSchedulePreFilterElementConfigAuditLogFormatterTest extends TestCase
+{
+    private const FILTER_ELEMENT_ID = 789;
+    private const FILTER_ELEMENT_TYPE = 'EVENT_TYPE_ID';
+    private const FILTER_ELEMENT_TYPE_UPDATE = 'TRACK_ID';
+    private const CONFIG_KEY = 'main_schedule';
+
+    private mixed $mockSubject;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->mockSubject = $this->createMockSubject();
+    }
+
+    protected function tearDown(): void
+    {
+        Mockery::close();
+        parent::tearDown();
+    }
+
+    private function createMockSubject(): mixed
+    {
+        $mockConfig = Mockery::mock('models\summit\SummitScheduleConfig');
+        $mockConfig->shouldReceive('getKey')->andReturn(self::CONFIG_KEY);
+        
+        $mock = Mockery::mock('models\summit\SummitSchedulePreFilterElementConfig');
+        
+        // Configure return values
+        $mock->shouldReceive('getId')->andReturn(self::FILTER_ELEMENT_ID);
+        $mock->shouldReceive('getType')->andReturn(self::FILTER_ELEMENT_TYPE);
+        $mock->shouldReceive('getConfig')->andReturn($mockConfig);
+        
+        return $mock;
+    }
+
+    public function testSubjectCreationAuditMessage(): void
+    {
+        $formatter = new SummitSchedulePreFilterElementConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('created', $result);
+        $this->assertStringContainsString((string)self::FILTER_ELEMENT_ID, $result);
+        $this->assertStringContainsString(self::FILTER_ELEMENT_TYPE, $result);
+        $this->assertStringContainsString(self::CONFIG_KEY, $result);
+    }
+
+    public function testSubjectUpdateAuditMessage(): void
+    {
+        $formatter = new SummitSchedulePreFilterElementConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_UPDATE);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $changeSet = ['type' => [self::FILTER_ELEMENT_TYPE, self::FILTER_ELEMENT_TYPE_UPDATE]];
+        
+        $result = $formatter->format($this->mockSubject, $changeSet);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('updated', $result);
+    }
+
+    public function testSubjectDeletionAuditMessage(): void
+    {
+        $formatter = new SummitSchedulePreFilterElementConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_DELETION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('deleted', $result);
+    }
+
+    public function testFormatterReturnsNullForInvalidSubject(): void
+    {
+        $formatter = new SummitSchedulePreFilterElementConfigAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format(new \stdClass(), []);
+        $this->assertNull($result);
+    }
+}
diff --git a/tests/OpenTelemetry/Formatters/SummitSignAuditLogFormatterTest.php b/tests/OpenTelemetry/Formatters/SummitSignAuditLogFormatterTest.php
new file mode 100644
index 000000000..cce83e7d6
--- /dev/null
+++ b/tests/OpenTelemetry/Formatters/SummitSignAuditLogFormatterTest.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Tests\OpenTelemetry\Formatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\ConcreteFormatters\SummitSignAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use Tests\OpenTelemetry\Formatters\Support\AuditContextBuilder;
+use Mockery;
+use Tests\TestCase;
+
+class SummitSignAuditLogFormatterTest extends TestCase
+{
+    private const SUMMIT_NAME = 'OpenStack Summit 2024';
+    private const SIGN_ID = 321;
+    private const SIGN_TEMPLATE = 'Welcome Template';
+    private const LOCATION_NAME = 'Registration Area';
+
+    private mixed $mockSubject;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->mockSubject = $this->createMockSubject();
+    }
+
+    protected function tearDown(): void
+    {
+        Mockery::close();
+        parent::tearDown();
+    }
+
+    private function createMockSubject(): mixed
+    {
+        $mockSummit = Mockery::mock('models\summit\Summit');
+        $mockSummit->shouldReceive('getName')->andReturn(self::SUMMIT_NAME);
+        
+        $mockLocation = Mockery::mock('models\summit\SummitAbstractLocation');
+        $mockLocation->shouldReceive('getName')->andReturn(self::LOCATION_NAME);
+        
+        $mock = Mockery::mock('App\Models\Foundation\Summit\Signs\SummitSign');
+        
+        // Configure return values
+        $mock->shouldReceive('getId')->andReturn(self::SIGN_ID);
+        $mock->shouldReceive('getTemplate')->andReturn(self::SIGN_TEMPLATE);
+        $mock->shouldReceive('getLocation')->andReturn($mockLocation);
+        $mock->shouldReceive('getSummit')->andReturn($mockSummit);
+        
+        return $mock;
+    }
+
+    public function testSubjectCreationAuditMessage(): void
+    {
+        $formatter = new SummitSignAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('created', $result);
+        $this->assertStringContainsString((string)self::SIGN_ID, $result);
+        $this->assertStringContainsString(self::SIGN_TEMPLATE, $result);
+        $this->assertStringContainsString(self::LOCATION_NAME, $result);
+    }
+
+    public function testSubjectUpdateAuditMessage(): void
+    {
+        $formatter = new SummitSignAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_UPDATE);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $changeSet = ['template' => [self::SIGN_TEMPLATE, 'Goodbye Template']];
+        
+        $result = $formatter->format($this->mockSubject, $changeSet);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('updated', $result);
+    }
+
+    public function testSubjectDeletionAuditMessage(): void
+    {
+        $formatter = new SummitSignAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_DELETION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('deleted', $result);
+    }
+
+    public function testFormatterReturnsNullForInvalidSubject(): void
+    {
+        $formatter = new SummitSignAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format(new \stdClass(), []);
+        $this->assertNull($result);
+    }
+}
diff --git a/tests/OpenTelemetry/Formatters/TrackTagGroupAuditLogFormatterTest.php b/tests/OpenTelemetry/Formatters/TrackTagGroupAuditLogFormatterTest.php
new file mode 100644
index 000000000..32635bfd4
--- /dev/null
+++ b/tests/OpenTelemetry/Formatters/TrackTagGroupAuditLogFormatterTest.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Tests\OpenTelemetry\Formatters;
+
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Audit\ConcreteFormatters\TrackTagGroupAuditLogFormatter;
+use App\Audit\Interfaces\IAuditStrategy;
+use Tests\OpenTelemetry\Formatters\Support\AuditContextBuilder;
+use Mockery;
+use Tests\TestCase;
+
+class TrackTagGroupAuditLogFormatterTest extends TestCase
+{
+    private const SUMMIT_NAME = 'OpenStack Summit 2024';
+    private const TAG_GROUP_ID = 654;
+    private const TAG_GROUP_NAME = 'Technology';
+    private const TAG_GROUP_LABEL = 'Technology Tags';
+
+    private mixed $mockSubject;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->mockSubject = $this->createMockSubject();
+    }
+
+    protected function tearDown(): void
+    {
+        Mockery::close();
+        parent::tearDown();
+    }
+
+    private function createMockSubject(): mixed
+    {
+        $mockSummit = Mockery::mock('models\summit\Summit');
+        $mockSummit->shouldReceive('getName')->andReturn(self::SUMMIT_NAME);
+        
+        $mock = Mockery::mock('App\Models\Foundation\Summit\TrackTagGroup');
+        
+        // Configure return values
+        $mock->shouldReceive('getId')->andReturn(self::TAG_GROUP_ID);
+        $mock->shouldReceive('getName')->andReturn(self::TAG_GROUP_NAME);
+        $mock->shouldReceive('getLabel')->andReturn(self::TAG_GROUP_LABEL);
+        $mock->shouldReceive('getSummit')->andReturn($mockSummit);
+        
+        return $mock;
+    }
+
+    public function testSubjectCreationAuditMessage(): void
+    {
+        $formatter = new TrackTagGroupAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('created', $result);
+        $this->assertStringContainsString(self::TAG_GROUP_NAME, $result);
+        $this->assertStringContainsString(self::TAG_GROUP_LABEL, $result);
+        $this->assertStringContainsString((string)self::TAG_GROUP_ID, $result);
+    }
+
+    public function testSubjectUpdateAuditMessage(): void
+    {
+        $formatter = new TrackTagGroupAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_UPDATE);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $changeSet = [
+            'name' => [self::TAG_GROUP_NAME, 'Infrastructure'],
+            'label' => [self::TAG_GROUP_LABEL, 'Infrastructure Tags']
+        ];
+        
+        $result = $formatter->format($this->mockSubject, $changeSet);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('updated', $result);
+    }
+
+    public function testSubjectDeletionAuditMessage(): void
+    {
+        $formatter = new TrackTagGroupAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_DELETION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format($this->mockSubject, []);
+        
+        $this->assertNotNull($result);
+        $this->assertStringContainsString('deleted', $result);
+    }
+
+    public function testFormatterReturnsNullForInvalidSubject(): void
+    {
+        $formatter = new TrackTagGroupAuditLogFormatter(IAuditStrategy::EVENT_ENTITY_CREATION);
+        $formatter->setContext(AuditContextBuilder::default()->build());
+        $result = $formatter->format(new \stdClass(), []);
+        $this->assertNull($result);
+    }
+}