diff --git a/v1/src/apps/private/users/services.js b/v1/src/apps/private/users/services.js
index fdac532..766e1ae 100644
--- a/v1/src/apps/private/users/services.js
+++ b/v1/src/apps/private/users/services.js
@@ -54,24 +54,38 @@ const patchProfileData = async(req, res) => {
     }
 };
 
+/**
+ * Verify if the author has enough rights to change the affected user role 
+ * @param {*} change_author_job_role 
+ * @param {*} affected_job_role 
+ * @returns 
+ */
 function job_role_change_allowance( change_author_job_role , affected_job_role ){
     try{
+        /** Only owner and managers can change the role */
         if( (change_author_job_role !== "owner") && (change_author_job_role !== "manager") ){
             return false;
         }
 
+        /** No one can affect the role of the owner */
         if( affected_job_role === "owner" ){
             return false;
         }
 
-        switch( affected_job_role ){
-            case 'manager':
-            case 'driver':
-            case 'staff':
-                return true;
-            default:
-                return false;
+        /** You can only modify the role of a user if it is in the following list */
+        const modifiable_roles = [
+            'manager',
+            'driver',
+            'staff',
+            'warehouse'
+        ];
+        
+        if( modifiable_roles.includes( affected_job_role ) ){
+            return true;
+        }else{
+            return false;
         }
+
     }catch( error ){
         console.error( error );
         return res.status( 500 ).send( { error } );