How To Fix USMD_CMM005 - The system cannot create an empty entity key

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD_CMM -

• Message number: 005

• Message text: The system cannot create an empty entity key

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message USMD_CMM005 - The system cannot create an empty entity key ?

  The SAP error message USMD_CMM005 ("The system cannot create an empty entity key") typically occurs in the context of SAP Master Data Governance (MDG) when there is an attempt to create or process a master data entity without a valid key or identifier. This error indicates that the system expects a unique identifier for the entity being created, but it is either missing or not properly defined.
  Causes:
  
  Missing Key Fields: The entity you are trying to create may have mandatory key fields that are not filled in.
  Incorrect Configuration: The configuration of the data model or the entity might be incorrect, leading to the system not recognizing the key fields.
  Data Model Issues: There may be issues with the data model configuration in MDG, such as missing or incorrectly defined entity types.
  User Input Errors: The user may have inadvertently left key fields blank or entered invalid data.
  
  Solutions:
  
  Check Required Fields: Ensure that all mandatory key fields for the entity are filled in correctly. Review the data entry screen to confirm that no required fields are left empty.
  Review Data Model Configuration: Check the configuration of the data model in MDG to ensure that the key fields are correctly defined and mapped.
  Validate Input Data: If you are importing data or using a template, validate the input data to ensure that it conforms to the expected format and includes all necessary key fields.
  Debugging: If you have access to debugging tools, you can trace the process to identify where the key is being set or lost.
  Consult Documentation: Review SAP documentation or notes related to the specific entity type you are working with to ensure compliance with the expected structure.
  Contact Support: If the issue persists, consider reaching out to SAP support for assistance, especially if you suspect a bug or configuration issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  MDG Configuration: Familiarize yourself with the configuration settings in SAP MDG, particularly those related to entity types and key fields.
  User Training: Ensure that users are trained on the correct procedures for entering data into the system to minimize input errors.
  
  By following these steps, you should be able to identify and resolve the issue causing the USMD_CMM005 error in your SAP system.