How To Fix PZ127 - The key number must not be filled in the extension table

SAP Error Message - Details

• Message type: E = Error

• Message class: PZ - Messages: Payment program for payment requests

• Message number: 127

• Message text: The key number must not be filled in the extension table

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 PZ127 - The key number must not be filled in the extension table ?

  The SAP error message PZ127, which states "The key number must not be filled in the extension table," typically occurs in the context of SAP HR (Human Resources) or other modules where extension tables are used to store additional data related to a primary table.
  Cause:
  This error usually arises when there is an attempt to fill in a key field in an extension table that should remain empty. Extension tables are designed to hold additional information related to a primary table without duplicating the key fields. The key fields are already defined in the primary table, and the extension table is meant to extend the data model without altering the key structure.
  Solution:
  To resolve this error, you should:
  
  
  Check the Data Entry: Ensure that you are not inadvertently entering a value in the key field of the extension table. Review the data you are trying to save or process and remove any values from the key fields in the extension table.
  
  
  Review Table Structure: If you have access to the data dictionary (SE11), check the structure of the extension table to confirm which fields are designated as key fields. Make sure that you are adhering to the design of the database tables.
  
  
  Debugging: If you are unsure where the error is coming from, you may need to debug the program or transaction that is causing the error. This can help you identify where the key field is being populated incorrectly.
  
  
  Consult Documentation: Review any relevant SAP documentation or notes related to the specific module you are working with. There may be specific guidelines or known issues that can provide additional context.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may have additional insights or patches that can resolve the issue.
  
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to this error message. SAP frequently updates its knowledge base with solutions to common issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like SE11 for data dictionary, SE80 for object navigator) that can help you analyze the database structure.
  User Exits and BAdIs: If you are using custom code or enhancements, check if there are any user exits or BAdIs that might be affecting the behavior of the extension table.
  
  By following these steps, you should be able to identify and resolve the issue related to the PZ127 error message in SAP.