Order categories are not identical
Message type: E = Error
Message class: MILL_OC - Messages for order combination
Message number: 078
Message text: Order categories are not identical
What causes this issue?
You tried to combine different order categories.
System Response
The system terminates the operation.
How to fix this error?
Only combine orders of the same category.
Procedure for System Administrators
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.