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app/Http/Resources/API/ProjectRequirementResource.php

@@ -21,6 +21,7 @@ class ProjectRequirementResource extends JsonResource
             'requirement_group_id' => $this->requirement_group_id ?? 0,
             'requirement_group' => new RequirementGroupParentResource($this->group),
             'created_by' => new UserProfileResource($this->createdBy),
+            'plan' => new SimplePlanResource($this->plan),
             'status' => $this->status,
             'approval_status' => $this->approval_status,
         ];