​@VMet what you want cannot be achieved with a configuration. This can be achieved only through proper search - considering the value of the custom attribute when executing the search. If you wanna block Receipts when the Custom Attribute value is not 2, then you have the following options:

Option1 - do a modification - and change the DB view receivable_object_info to only show PO Lines that satisfy the condition you want → this is the only way to do exactly what you described

Option2 (workaround) - put a condition on the Receive button - so that if a PO Line is selected and the custom attribute doesn’t have the correct value, the Receive button will be hidden

Option3 (workaround) - create a BPA WF that shows a toast error message when users try to register arrival for a PO Line that doesn’t satisfy the conditions you need

I would personally go for Option2. It’s the easiest to implement and get’s the job done.

Hello ​@Marcel.Ausan thanks very much for you answer. I’m gonna have a look and will come back to you when I implement one of those solutions.