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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN290 - OAN element &1 in OAN &2, version &3 cannot be changed ?

  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 data that prevent changes from being made.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Locks: Verify if the OAN element is locked by another user or process. You can use transaction code SM12 to check for locks and release them if necessary.
  Review Versioning: Ensure that you are working with the correct version of the OAN element. If the version is locked, you may need to unlock it or create a new version.
  Authorization Check: Confirm that you have the necessary authorizations to modify the OAN element. You may need to consult with your SAP security team to ensure your user role has the appropriate permissions.
  Data Consistency Check: Run consistency checks on the data related to the OAN element. You can use transaction codes like OAN1 or OAN2 to check for inconsistencies and correct them.
  Consult Documentation: Review SAP documentation or notes related to the specific error message for any additional guidance or updates.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OAN1, OAN2, OAN3, and SM12 for managing OAN elements and checking locks.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number in the SAP Support Portal.
  User Forums: Consider visiting SAP community forums or discussion boards where other users may have encountered similar issues and shared their solutions.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team for further assistance.