The 
CreatedByExt field displays the name of the customer who created the record through the Customer Portal.
Follow these steps to view who created the record:
	- Log in to your CRM account.
 	- Click the Main Menu.
 	- Go to the respective module (e.g., Cases, Deals, Contacts). The List View of the module opens. 
 	- Open the record created by the partner. The Summary View of the record opens.
 	- Go to the Details View.
 	- Go to the CreatedByExt field to see the customer’s name who created the record.
 
Note: If the customer contact is deleted, the system will display strike-through text in this field.