Diagnosis
There are assignments that begin before the main assignment. This is notpermitted because the main assignment must always begin before and endafter all secondary assignments.

System Response
The system cannot copy the entered assignments.

Procedure
Adjust the "Valid from" date of the secondary assignments to begin onthe same date as the validity period of the main assignment, or adjustthe "Valid from" date of the main assignment so that it begins beforeall other assignments. Alternatively, set the "Main Assignment"indicator for the assignment that begins first.