How To Fix /SAPAPO/OM_BASIS016 - No external key exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_BASIS -

• Message number: 016

• Message text: No external key exists

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_BASIS016 - No external key exists ?

  The SAP error message /SAPAPO/OM_BASIS016 No external key exists typically occurs in the context of SAP Advanced Planning and Optimization (APO) when the system is unable to find a corresponding external key for a specific object or transaction. This can happen in various scenarios, such as during data transfer, planning, or when trying to access certain master data.
  Causes:
  
  Missing External Key: The most common cause is that the external key (which could be a unique identifier for a material, location, or other objects) is not present in the system.
  Data Transfer Issues: If data is being transferred from another system (like SAP ERP) to SAP APO, and the external key is not included in the transfer, this error can occur.
  Configuration Issues: Incorrect configuration in the integration settings between SAP ERP and SAP APO can lead to missing keys.
  Master Data Issues: The relevant master data (like materials, locations, etc.) may not be properly maintained or may be missing in the APO system.
  
  Solutions:
  
  Check Master Data: Verify that the relevant master data exists in the system and that the external key is correctly maintained. This includes checking materials, locations, and any other relevant objects.
  Data Transfer Validation: If the error occurs during data transfer, ensure that the external key is included in the data being transferred. You may need to adjust the data extraction or transfer process.
  Integration Settings: Review the configuration settings for the integration between SAP ERP and SAP APO. Ensure that the settings are correct and that the necessary mappings for external keys are in place.
  Recreate Missing Data: If the external key is missing, you may need to recreate the relevant master data in the APO system or ensure that it is properly replicated from the source system.
  Check Logs: Review any relevant logs or error messages that may provide additional context about the issue. This can help identify the specific object or transaction that is causing the error.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/OM_ORDER or /SAPAPO/OM_MAT to check orders or materials in APO.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to SAP documentation for APO and integration with SAP ERP for best practices on maintaining master data and configuring data transfer.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or APO support team for further assistance.