Diagnosis
You have chosen an agreement whose rental start and first debitposition
date are identical. The adjustment history can only be maintained
between the rental start and the first debit position date, since the
rent adjustment history cannot be automatically determined during this
period.

System Response
This is only a warning. If you confirm this with ENTER, the maintenance
screen will open. It is however not possible to change the adjustment
history because the system only permits the changing of history records
that are between rental start and the first debit position date.

Procedure
Enter the number of another agreement.