Problem Scenario:


Users need to modify certain details in a credit note but upon checking, all fields have been disabled.




Check if the transaction has been posted using other form such as Sales Credit Note.


 Take note that the open window is Customer Credit Note but the original transaction is created using Sales Credit Note. You will notice it because the system will inform you that this transaction was Posted from Sales CN.

Open the document now using Sales Credit Note


Notice that you may now modify details in it.