How To Fix MPE_OAN100 - Incomplete key for reference material assignment in OA &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 100

• Message text: Incomplete key for reference material assignment in OA &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN100 - Incomplete key for reference material assignment in OA &1 ?

  The SAP error message MPE_OAN100 indicates that there is an incomplete key for the reference material assignment in the context of Asset Accounting (OA). This error typically arises when the system is unable to find a complete and valid reference for the material that is being assigned to an asset.
  Cause:
  The error can occur due to several reasons:
  
  Missing or Incomplete Data: The reference material may not have all the required fields filled out, such as the material number, plant, or valuation area.
  Incorrect Configuration: The configuration settings for the asset accounting or material management modules may not be set up correctly.
  Data Inconsistency: There may be inconsistencies in the master data for materials or assets, leading to the inability to establish a proper link.
  Authorization Issues: The user may not have the necessary permissions to access the reference material data.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the Material Master (transaction code MM03) and verify that the material in question has all the necessary data filled out, including the material type, plant, and valuation area.
  
  
  
  Review Asset Master Data:
  
  Check the asset master data (transaction code AS03) to ensure that the asset is correctly configured and that it references the correct material.
  
  
  
  Validate Configuration:
  
  Review the configuration settings in Asset Accounting (transaction code SPRO) to ensure that the settings for reference materials are correctly defined.
  
  
  
  Check for Inconsistencies:
  
  Run consistency checks for both material and asset data to identify any discrepancies that may be causing the issue.
  
  
  
  User Authorizations:
  
  Ensure that the user has the necessary authorizations to access and modify the material and asset data.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific details related to the error message and its context.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), AS03 (Display Asset), SPRO (Customizing).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the cause of the MPE_OAN100 error in your SAP system.