How To Fix 5C579 - Initial value in key field is not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: 5C - HR: Messages for Switzerland

• Message number: 579

• Message text: Initial value in key field is not permitted

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 5C579 - Initial value in key field is not permitted ?

  The SAP error message 5C579 ("Initial value in key field is not permitted") typically occurs when you are trying to create or modify a record in a database table where one of the key fields is required to have a non-initial (non-empty) value, but you are attempting to save it with an initial value (like a blank or zero).
  Cause:
  
  Key Field Requirement: The key field in the database table is defined in such a way that it cannot accept an initial value. This is common in tables where the key field is essential for identifying records uniquely.
  Data Entry Error: The user may have inadvertently left a required field blank during data entry.
  Configuration Issue: There may be a configuration issue in the data model or the way the application is set up, leading to this error.
  
  Solution:
  
  Check Input Values: Ensure that all required fields, especially the key fields, are filled with valid, non-initial values before attempting to save the record.
  Review Field Definitions: Check the data dictionary (SE11) for the table in question to understand which fields are defined as key fields and their constraints.
  Debugging: If you are a developer or have access to debugging tools, you can use transaction SE80 or SE37 to analyze the program or function module that is causing the error. Look for the point where the data is being validated or saved.
  Consult Documentation: Review any relevant documentation or user guides for the specific transaction or process you are working with to ensure you are following the correct procedures.
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error.
  
  Related Information:
  
  Transaction Codes: Depending on where you encounter this error, you may be using various transaction codes (e.g., VA01 for sales orders, ME21N for purchase orders, etc.).
  SAP Notes: Search for SAP Notes related to error message 5C579 in the SAP Support Portal for any patches or updates that may address this issue.
  User Exits and BAdIs: If you are customizing the application, check if there are any user exits or BAdIs that might be affecting the behavior of the key fields.
  
  By ensuring that all key fields are populated correctly and understanding the constraints of the database table, you should be able to resolve the error.