I created a new tax code as a copy of an existing one and assinged the same GL account which is setup as output tax.
Manual postings with FB01 work ok.
We receive receivables from extranal systems and load them via RFBIBL00 which creates FB01 entries.
With my new tax code however I get the error: Posting is only possible with a zero balance.
I seems that the tax positng is not happening and therefore the positng is not balanced.
It however works with the original tax code that I copied.
XMWST is not set but it is also not set with the original tax code.
I can't figure out what is missing.