How To Fix /IAM/CONFIG016 - Only one main reference object is allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /IAM/CONFIG -

• Message number: 016

• Message text: Only one main reference object is allowed

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 /IAM/CONFIG016 - Only one main reference object is allowed ?

  The SAP error message /IAM/CONFIG016: Only one main reference object is allowed typically occurs in the context of Identity Access Management (IAM) or when configuring certain reference objects in SAP systems. This error indicates that the system expects only one main reference object to be defined, but it has detected multiple entries or an incorrect configuration.
  Cause:
  
  Multiple Main Reference Objects: The most common cause of this error is that the configuration has been set up with more than one main reference object, which is not allowed.
  Incorrect Configuration: There may be a misconfiguration in the settings where the system is unable to determine which object should be the main reference.
  Data Integrity Issues: There could be issues with the data integrity in the configuration tables, leading to multiple entries being recognized as main reference objects.
  
  Solution:
  
  Review Configuration: Check the configuration settings in the IAM or relevant module to ensure that only one main reference object is defined. This can usually be done in the customizing settings of the relevant application.
  Delete or Deactivate Extra Objects: If you find multiple main reference objects, you will need to delete or deactivate the extra entries to comply with the requirement of having only one main reference object.
  Check for Data Consistency: Ensure that the data in the relevant tables is consistent and does not contain duplicates or incorrect entries that could lead to this error.
  Consult Documentation: Refer to the SAP documentation or help guides specific to the IAM module or the area where the error is occurring for detailed instructions on how to configure reference objects correctly.
  Testing: After making changes, test the configuration to ensure that the error is resolved and that the system behaves as expected.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in reviewing or modifying the configuration (e.g., SU01, PFCG, or specific IAM-related transactions).
  Support: If the issue persists after following the above steps, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to resolve the /IAM/CONFIG016 error and ensure that your SAP system is configured correctly.