SAP Message WTY15100 - Change to CO account assignment is not allowed for condition type &1

Diagnosis
You have entered a condition typr for which you are not allowed tochange the CO account assignment.

System Response
The system does not save this entry.

Procedure
Choose a different condition type or contact your system administrator.

Procedure for System Administration
If required, create an appropriate entry in the IMG activityAllow Changeability of CO AccountAssignments for Condition Types.