diff --git a/app/Http/Controllers/User/UserController.php b/app/Http/Controllers/User/UserController.php
index 791ec63..50e806b 100644
--- a/app/Http/Controllers/User/UserController.php
+++ b/app/Http/Controllers/User/UserController.php
@@ -41,7 +41,7 @@ public function update(UserUpdateRequest $request, $id)
             $user->update(
                 array_merge(
                     $request->only(['email']),
-                    $this->updatedBy()
+                    $this->updated_by()
                 )
             );
 
diff --git a/app/Http/Resources/GlobalParameterResource.php b/app/Http/Resources/GlobalParameterResource.php
index 6388c37..d596f7c 100644
--- a/app/Http/Resources/GlobalParameterResource.php
+++ b/app/Http/Resources/GlobalParameterResource.php
@@ -21,17 +21,17 @@ public function toArray(Request $request): array
             'description' => $this->description ?? null,
             'is_active' => $this->is_active ?? null,
             'created_by' => [
-                'id' => $this->createdBy->userProfile->id ?? null,
-                'firstname' => $this->createdBy->userProfile->firstname ?? null,
-                'middlename' => $this->createdBy->userProfile->middlename ?? null,
-                'lastname' => $this->createdBy->userProfile->lastname ?? null,
+                'id' => $this->created_by_user_profile->id ?? null,
+                'firstname' => $this->created_by_user_profile->firstname ?? null,
+                'middlename' => $this->created_by_user_profile->middlename ?? null,
+                'lastname' => $this->created_by_user_profile->lastname ?? null,
             ],
 
             'updated_by' => [
-                'id' => $this->updatedBy->userProfile->id ?? null,
-                'firstname' => $this->updatedBy->userProfile->firstname ?? null,
-                'middlename' => $this->updatedBy->userProfile->middlename ?? null,
-                'lastname' => $this->updatedBy->userProfile->lastname ?? null,
+                'id' => $this->updated_by_user_profile->id ?? null,
+                'firstname' => $this->updated_by_user_profile->firstname ?? null,
+                'middlename' => $this->updated_by_user_profile->middlename ?? null,
+                'lastname' => $this->updated_by_user_profile->lastname ?? null,
             ],
         ];
     }
diff --git a/app/Http/Resources/GlobalParameterTypeResource.php b/app/Http/Resources/GlobalParameterTypeResource.php
index bdfa0a2..66eabac 100644
--- a/app/Http/Resources/GlobalParameterTypeResource.php
+++ b/app/Http/Resources/GlobalParameterTypeResource.php
@@ -20,16 +20,16 @@ public function toArray(Request $request): array
             'description' => $this->description ?? null,
             'is_active' => $this->is_active ?? null,
             'created_by' => [
-                'id' => $this->createdBy->userProfile->id ?? null,
-                'firstname' => $this->createdBy->userProfile->firstname ?? null,
-                'middlename' => $this->createdBy->userProfile->middlename ?? null,
-                'lastname' => $this->createdBy->userProfile->lastname ?? null,
+                'id' => $this->created_by_user_profile->id ?? null,
+                'firstname' => $this->created_by_user_profile->firstname ?? null,
+                'middlename' => $this->created_by_user_profile->middlename ?? null,
+                'lastname' => $this->created_by_user_profile->lastname ?? null,
             ],
             'updated_by' => [
-                'id' => $this->updatedBy->userProfile->id ?? null,
-                'firstname' => $this->updatedBy->userProfile->firstname ?? null,
-                'middlename' => $this->updatedBy->userProfile->middlename ?? null,
-                'lastname' => $this->updatedBy->userProfile->lastname ?? null,
+                'id' => $this->updated_by_user_profile->id ?? null,
+                'firstname' => $this->updated_by_user_profile->firstname ?? null,
+                'middlename' => $this->updated_by_user_profile->middlename ?? null,
+                'lastname' => $this->updated_by_user_profile->lastname ?? null,
             ],
         ];
     }
diff --git a/app/Models/GlobalParameter.php b/app/Models/GlobalParameter.php
index 411ef61..b7e1370 100644
--- a/app/Models/GlobalParameter.php
+++ b/app/Models/GlobalParameter.php
@@ -17,12 +17,12 @@ public function globalParameterType(): BelongsTo
         return $this->belongsTo(GlobalParameterType::class, 'type', 'id');
     }
 
-    public function createdBy()
+    public function created_by_user_profile()
     {
         return $this->belongsTo(UserProfile::class, 'created_by', 'id');
     }
 
-    public function updatedBy()
+    public function updated_by_user_profile()
     {
         return $this->belongsTo(UserProfile::class, 'updated_by', 'id');
     }
diff --git a/app/Models/GlobalParameterType.php b/app/Models/GlobalParameterType.php
index ff02681..8d4d9c6 100644
--- a/app/Models/GlobalParameterType.php
+++ b/app/Models/GlobalParameterType.php
@@ -5,7 +5,6 @@
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\HasMany;
-use Illuminate\Database\Eloquent\Relations\HasOne;
 
 class GlobalParameterType extends Model
 {
@@ -18,13 +17,13 @@ public function globalParameters(): HasMany
         return $this->hasMany(GlobalParameter::class, 'id');
     }
 
-    public function createdBy()
+    public function created_by_user_profile()
     {
-        return $this->belongsTo(User::class, 'created_by', 'id');
+        return $this->belongsTo(UserProfile::class, 'created_by', 'id');
     }
 
-    public function updatedBy()
+    public function updated_by_user_profile()
     {
-        return $this->belongsTo(User::class, 'updated_by', 'id');
+        return $this->belongsTo(UserProfile::class, 'updated_by', 'id');
     }
 }
diff --git a/app/Traits/CreatedByAndUpdatedBy.php b/app/Traits/CreatedByAndUpdatedBy.php
index 0c2ffe7..46eb128 100644
--- a/app/Traits/CreatedByAndUpdatedBy.php
+++ b/app/Traits/CreatedByAndUpdatedBy.php
@@ -15,12 +15,12 @@ private function createdByAndUpdatedBy()
         ];
     }
 
-    private function createdBy()
+    private function created_by()
     {
         return ['created_by' => Auth::user()->id];
     }
 
-    private function updatedBy()
+    private function updated_by()
     {
         return ['updated_by' => Auth::user()->id];
     }