Unable to delete a serial from a PO after receiving it incorrectly

EPASS Support

04-Feb-2026

There are two common causes where you are not able to delete an incorrectly received serial for a model on the PO.

1) The Delete button is not showing at all so there is no option to even try to delete. This would mean that you do not have user-security to delete serials in EPASS.





As seen in the screenshot, the security that controls it (Serial Maintenance: Delete) is actually in Serial Inventory rather than Purchasing.  This is because even when you are deleting it from the PO screen, you are basically updating the serial table so the user security is placed there.  You will need to make sure your user has this security enabled in order to see the Delete button.

2) The Delete button is there but it is greyed out so you cannot click on it. This would mean that you do have permission to use the Delete button but there is something preventing it from being available. The usual cause of that would be that the serial is already reserved or associated to an invoice (aka back order invoice) in the system. You can fix this un-reserving that serial from the invoice and the serial should be free for you to delete again from the PO side.