Diagnosis
The Option Rate Relevant indicator is set for more than oneassignment. This is not allowed.
For the system to be able to process input tax distribution for adocument with account assignment to a CO object (order, WBS element,cost center), the CO object has to be uniquely assigned to one realestate object. For this real estate object, an option rate method isentered that is used to determine the option rate that is relevant forthe input tax distribution posting.

System Response
Deselect the Option Rate Relevant indicator for the additionalassignment.