How To Fix MPE_OAN155 - Element &1 is still used by a relationship in OAN &2, version &3

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 155

• Message text: Element &1 is still used by a relationship in OAN &2, version &3

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN155 - Element &1 is still used by a relationship in OAN &2, version &3 ?

  The SAP error message MPE_OAN155 indicates that a specific element (identified by &1) is still being used in a relationship within an object (identified by OAN &2) of a certain version (version &3). This typically occurs in the context of Object Administration in SAP, particularly when dealing with master data or configuration objects.
  Cause:
  The error arises when you attempt to delete or modify an element that is still referenced by a relationship in the system. This means that the element is actively linked to another object or relationship, and SAP prevents the deletion or modification to maintain data integrity.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Relationship: Use the information provided in the error message to identify the specific relationship that is causing the issue. You can look up the object (OAN &2) and version (&3) in the relevant transaction or application.
  
  
  Check Dependencies: Investigate the dependencies of the element (&1) to see where it is being used. This may involve checking related objects, relationships, or configurations.
  
  
  Remove or Update Relationships: If you determine that the relationship is no longer needed, you can remove it. If the relationship is still required, consider updating it to point to a different element or modifying it as necessary.
  
  
  Re-attempt the Action: Once you have addressed the relationships that are causing the error, you can re-attempt the action that triggered the error message (e.g., deleting or modifying the element).
  
  
  Consult Documentation: If you are unsure about the relationships or how to proceed, consult SAP documentation or reach out to your SAP support team for guidance.
  
  
  Related Information:
  
  Transaction Codes: Depending on your SAP version and configuration, you may use transaction codes like OAN1, OAN2, or OAN3 to manage object relationships.
  Data Integrity: Always ensure that any changes you make do not compromise the integrity of your data. It is advisable to perform such actions in a test environment before applying them in production.
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for this specific error message.
  
  By following these steps, you should be able to resolve the MPE_OAN155 error and proceed with your intended actions in SAP.