diff --git a/ProcessMaker/Models/ProcessRequest.php b/ProcessMaker/Models/ProcessRequest.php
index a9c6ad3865..bceeb109bc 100644
--- a/ProcessMaker/Models/ProcessRequest.php
+++ b/ProcessMaker/Models/ProcessRequest.php
@@ -211,19 +211,25 @@ public function __construct(array $argument = [])
     }
 
     /**
-     * Validation rules.
+     * Get the validation rules for process requests.
      *
-     * @param null $existing
+     * @param mixed|null $existing ID of existing process request
      *
-     * @return array
+     * @return array Array of validation rules for the process request fields:
+     *               - name: Required string, max 100 chars, alpha spaces only
+     *               - data: Required field
+     *               - status: Must be one of: ACTIVE, COMPLETED, ERROR, CANCELED
+     *               - process_id: Required and must exist in processes table
+     *               - process_collaboration_id: Optional but must exist in process_collaborations table if provided
+     *               - user_id: Optional but must exist in users table if provided
      */
     public static function rules($existing = null)
     {
         $self = new self();
-        $unique = Rule::unique($self->getConnectionName() . '.process_requests')->ignore($existing);
+        $nameRules = ['required', 'string', 'max:100', 'alpha_spaces'];
 
         return [
-            'name' => ['required', 'string', 'max:100', $unique, 'alpha_spaces'],
+            'name' => $nameRules,
             'data' => 'required',
             'status' => 'in:ACTIVE,COMPLETED,ERROR,CANCELED',
             'process_id' => 'required|exists:processes,id',
@@ -986,6 +992,7 @@ public function getRequestAsArray()
     {
         $array = $this->toArray();
         unset($array['process_version']['svg']);
+
         return $array;
     }
 
diff --git a/tests/Feature/Api/ProcessRequestsTest.php b/tests/Feature/Api/ProcessRequestsTest.php
index ba847d98de..280ee9c97a 100644
--- a/tests/Feature/Api/ProcessRequestsTest.php
+++ b/tests/Feature/Api/ProcessRequestsTest.php
@@ -384,24 +384,85 @@ public function testUpdateProcessRequest()
     }
 
     /**
-     * Check that the validation wont allow duplicate requestnames
+     * Test updating process request status through various state transitions
+     *
+     * Tests the following status transitions:
+     * - ACTIVE -> CANCELED
+     * - CANCELED -> ACTIVE
+     * - ACTIVE -> ERROR
+     * - ERROR -> ACTIVE
+     * - ACTIVE -> CANCELED
+     * - CANCELED -> ERROR
+     *
+     * Each transition should return a 204 status code indicating success
      */
-    public function testUpdateProcessRequestTitleExists()
+    public function testUpdateProcessRequestStatus()
     {
+        $process = Process::factory()->create();
         $request1 = ProcessRequest::factory()->create([
             'name' => 'MyRequestName',
+            'status' => 'ACTIVE',
+            'process_id' => $process->id,
+            'data' => ['foo' => 'baz'],
         ]);
 
-        $request2 = ProcessRequest::factory()->create();
+        // Try to update status to CANCELED
+        $url = self::API_TEST_URL . '/' . $request1->id;
+        $response = $this->apiCall('PUT', $url, [
+            'status' => 'CANCELED',
+        ]);
+
+        // Verify status was updated
+        $response->assertStatus(204);
+
+        $response = $this->apiCall('PUT', $url, [
+            'status' => 'ACTIVE',
+            'name' => 'MyRequestName',
+            'process_id' => $process->id,
+            'data' => ['foo' => 'baz'],
+        ]);
 
-        $url = self::API_TEST_URL . '/' . $request2->id;
+        // Verify status was updated
+        $response->assertStatus(204);
 
         $response = $this->apiCall('PUT', $url, [
+            'status' => 'ERROR',
             'name' => 'MyRequestName',
+            'process_id' => $process->id,
+            'data' => ['foo' => 'baz'],
         ]);
-        //Validate the header status code
-        $response->assertStatus(422);
-        $response->assertSeeText('The Name has already been taken');
+        // Verify status was updated
+        $response->assertStatus(204);
+
+        $response = $this->apiCall('PUT', $url, [
+            'status' => 'ACTIVE',
+            'name' => 'MyRequestName',
+            'process_id' => $process->id,
+            'data' => ['foo' => 'baz'],
+        ]);
+
+        // Verify status was updated
+        $response->assertStatus(204);
+
+        $response = $this->apiCall('PUT', $url, [
+            'status' => 'CANCELED',
+            'name' => 'MyRequestName',
+            'process_id' => $process->id,
+            'data' => ['foo' => 'baz'],
+        ]);
+
+        // Verify status was updated
+        $response->assertStatus(204);
+
+        $response = $this->apiCall('PUT', $url, [
+            'status' => 'ERROR',
+            'name' => 'MyRequestName',
+            'process_id' => $process->id,
+            'data' => ['foo' => 'baz'],
+        ]);
+
+        // Verify status was updated
+        $response->assertStatus(204);
     }
 
     /**