How To Fix MPE_OAN123 - Relationship between element &1 and &2 in OAN &3, version &4 is unknown

MPE_OAN123 - Overview

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 123

• Message text: Relationship between element &1 and &2 in OAN &3, version &4 is unknown

Self-Explanatory Message

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MPE_OAN123 - Details

• The SAP error message MPE_OAN123 indicates that there is an issue with the relationship between two elements in an Object Assignment Number (OAN) in a specific version. This error typically arises in the context of SAP Master Data Management or when dealing with object relationships in SAP systems.
  
  Cause:
  
  Missing Relationship Definition: The relationship between the specified elements (e.g., objects, entities) is not defined in the system.
  Incorrect Configuration: The configuration for the OAN or the version may be incorrect or incomplete.
  Data Integrity Issues: There may be inconsistencies or missing data in the master data records that are supposed to define the relationship.
  Versioning Issues: The version specified may not be active or may not have the necessary relationships defined.
  
  
  Solution:
  
  Check Relationship Definitions: Verify that the relationship between the specified elements is defined in the system. You may need to create or update the relationship in the relevant configuration settings.
  Review OAN Configuration: Ensure that the