I guess this occurs since the upgrade to v6.0 - but I’m not really sure about that. But registering payment worked nicely a few months ago, when I did bookings for the last time.
When finishing a sale and trying to register the payment and mark my invoice as “paid”, I get the error message:
The German text means:
"To create a booking line for account “1200 - outstanding debits”, party has to be removed from booking line “1200 - outstanding debits”.
I checked that account 1200, but is does not require parties.
How can I handle that?