We are facing an error while creating purchase order exactly more than 999 line items. This error is also observed in GRN of already created PO. Few days back we were able to create thousands of line items purchase orders. No customizing nor any change in configuration has been done.
This error is only where account assignment cat is used.
Cristiano Silveira replied
I reviewed almost all previous cases with similar query which are raised
by other users, but I regret to confirm this is an unavoidable
technical limitation and it is not able to change the system behavior.
As a workaround the PO can be split or the Project Cash Management
can temporarily be deactivated via transaction OPI6 for the relevant
Company Code while posting the PO. You have to be aware of that for the
second workaround, temporarily deactivating PS cash management will lea
to _NO_ cash documents being posted until it is reactivated again.
That means, you have to make sure, that no one posts any cash relevant
data until you can reactivate it.
Please note that the error message is NOT against the PO item numbers
but the 999 items limitation is for the related cash document which is
saved in table COFP.
Check whether your users are facing this kind of scenario and before they could do more than 999 because no cash document was being associated.
Hope could be at least helpful in my answers.