How To Fix RM320 - Runtime cannot be changed

RM320 - Overview

• Message type: E = Error

• Message class: RM - Messages for Repetitive Manufacturing

• Message number: 320

• Message text: Runtime cannot be changed

What causes this issue?

You cannot change the runtime because, for example, an inspection lot
has already been created or because postings have already been carried
out in the current period.

System Response

A runtime change is not allowed.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RM320 - Runtime cannot be changed ?

  The SAP error message RM320 ("Runtime cannot be changed") typically occurs in the context of SAP's Material Management (MM) or Production Planning (PP) modules when there is an attempt to change the runtime of a process or operation that is not allowed due to certain conditions.
  
  Cause:
  
  Status of the Order: The error often arises when the production order or process order is in a status that does not allow changes. For example, if the order is already released, confirmed, or completed, the runtime cannot be modified.
  System Settings: Certain system settings or configurations may restrict changes to runtime for specific types of orders or operations.
  Dependencies: There may be dependencies or relationships with other operations or orders that prevent changes to the runtime.
  
  
  Solution:
  
  Check Order Status: Verify the status of the production or process order. If it is in a status that does not allow changes (e.g., completed or closed), you will need to