From Release 4.0A, you can also use maintenance plans to generate service entry sheets for MM external service management directly. In this case, no order is created as a release. The service specifications are created directly for the preventive maintenance plan.
This option is controlled using the maintenance plan category. In the standard system, the maintenance plan category MM is configured for this. However, you can delete this if you do not want to use the maintenance plans for external service management.
Set maintenance plan categories