Diagnosis
You attempted to created multiple due dates fort he same budget billingrequest date in the budget billing plan.
However, this is not permitted in a deregulated budget billing plan.

System Response
Processing is terminated.

Procedure
The further procedure depends on the position in the program:
Scheduling
Check the determination of the due dates from the payment conditions.You may have defined a customer-specific due date determination forevent 1330 especially for budget billings.
Enhancement EA610002
Check the customer-specific coding in enhancement EA610002.
Event R994
Check the customer-specific function module for event R994.
Cycle change
Check the determination of the due dates from the payment conditions.You may have defined a customer-specific due date determination forevent 1330 especially for budget billings.
Otherwise, use event R926 to change the due dates when changing thecycle.
Migration BBP_MULT
Check the data in the migration file.
In all cases, you must ensure that a budget billing request date(SOLLDAT) has exactly one due date (FAEDN).