Order &1 is MEB-controlled and assigned revision &2 &3 is not released

What causes this issue?

The order has the system status MEB-controlled (MEBS) and is controlled
by the Maintenance Event Builder.
The assigned revision has not been released yet.

System Response

The order cannot be released.

How to fix this error?

The assigned revision must be released first, and then the order.

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.