How To Fix /SMB/DEFINITION013 - &1 is a key field. Key fields are mandatory and cannot be opted-out

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/DEFINITION -

• Message number: 013

• Message text: &1 is a key field. Key fields are mandatory and cannot be opted-out

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/DEFINITION013 - &1 is a key field. Key fields are mandatory and cannot be opted-out ?

  The SAP error message /SMB/DEFINITION013 &1 is a key field. Key fields are mandatory and cannot be opted-out typically occurs in the context of SAP Business One or SAP S/4HANA when dealing with data definitions, particularly when trying to modify or create a data structure that includes key fields.
  Cause:
  
  Key Field Definition: The error indicates that you are trying to perform an operation (like creating or modifying a data structure) where a key field is involved. Key fields are essential for uniquely identifying records in a database table.
  Attempt to Exclude Key Field: The error arises when there is an attempt to exclude or opt-out a key field from a process that requires it to be included. Key fields are mandatory and cannot be omitted in certain operations.
  
  Solution:
  
  Review Data Structure: Check the data structure you are working with. Ensure that you are not trying to exclude any key fields that are required for the operation you are performing.
  Modify Your Operation: If you are trying to create or modify a record, ensure that all key fields are included in your operation. You may need to adjust your input data to include these fields.
  Consult Documentation: Refer to the SAP documentation or help resources for the specific module you are working with to understand the requirements for key fields.
  Check Configuration: If you are working with custom developments or configurations, ensure that the key fields are correctly defined in the system and that your operations align with these definitions.
  
  Related Information:
  
  Key Fields in SAP: Key fields are crucial for database integrity and are used to uniquely identify records. They are often primary keys in database tables.
  SAP Notes and Support: If the issue persists, consider checking SAP Notes for any known issues or patches related to this error message. You can also reach out to SAP support for assistance.
  Testing in Development Environment: If possible, replicate the issue in a development or test environment to better understand the cause without affecting production data.
  
  By ensuring that all mandatory key fields are included in your operations and understanding their importance in the data structure, you should be able to resolve this error.