I am working for a Japanese company and we are facing every single with some IDoc error that occurs due to the same reason.
We have a held invoice in the system and one purchase order has been already posted against the held invoice. This is okay, but when we got invoic IDoc with the same PO what belongs to the same held invoice, IDoc runs to error with error message: "Multi-PO exist in the Held Invoice Document"
At the moment i am correcting the held invoice manually, but i do not believe there is no option/solution to fix this erro somehow.
I am sorry for "poor" explanation, but i am beginner. Please try to help/advice and if you have any question do not hesitate to contact me and will try answer or provide more input.
Many thanks in advance,