Diagnosis
V1 is already assigned to v2 (in period v3 to v4).
Multiple assignment during the same period is not allowed in this case.

Procedure
Assign a different object. If this involves the assignment of a rentalobject to an occupancy contract or contract offer, and you only wantinformational assignment, then set theindicator.
Setting the indicator is only possible if this is allowed inCustomizing for this assignment.
INCLUDE RECA_CUSTOMIZED_MESSAGE_INFO OBJECT DOKU ID TX