This document explains the error AccountIdNull when doing Conversion from Order to BILL in MYOB
- Error message as below when doing a conversion in MYOB and this is a MYOB known issue.
2. If getting error below'AccountID NULL' in MYOB while converting , this is myob bug and need to tick all items as :-
3.Assign account to EXPENSE and INCOME - set TAX CODE.
4.. Convert to BILL.
5. Please setup all new items as I BUY ISELL I INVENTORY to avoid this issue in future.