How To Fix MPE_OAN290 - OAN element &1 in OAN &2, version &3 cannot be changed

MPE_OAN290 - Overview

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 290

• Message text: OAN element &1 in OAN &2, version &3 cannot be changed

What causes this issue?

The OAN element could not be changed as it has the status not editable.
The following reasons can lead to an OAN element that is not editable:
- The routing is released and therefore no elements can be changed
- In the case of an order-specific routing, the OAN element is not
editable if the corresponding operation activity has already been
started or if the operation activity belongs to a rework operation.

System Response

The system displays an error.

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.

MPE_OAN290 - Details

• The SAP error message MPE_OAN290 indicates that there is an issue with changing an OAN (Object Assignment Number) element in the system. This error typically arises in the context of Asset Accounting or Object Management within SAP, particularly when dealing with the assignment of objects or elements that are already in use or have certain restrictions.
  
  Cause:
  The error message "OAN element &1 in OAN &2, version &3 cannot be changed" usually occurs due to one of the following reasons:
  
  Locked or In-Use Elements: The OAN element you are trying to change is currently locked or in use by another process or transaction.
  Version Control: The version of the OAN element you are trying to modify may be locked or not allowed to be changed due to version control settings.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the specified OAN element.
  Data Consistency: There may be inconsistencies in the