How To Fix 1P504 - Old and new payment items have differing keys

SAP Error Message - Details

• Message type: E = Error

• Message class: 1P - BCA: Payment Transactions

• Message number: 504

• Message text: Old and new payment items have differing keys

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 1P504 - Old and new payment items have differing keys ?

  The SAP error message 1P504 ("Old and new payment items have differing keys") typically occurs during the processing of payment items in the SAP system, particularly when there is an attempt to modify or update payment items that do not match in terms of their keys. This can happen in various scenarios, such as during the clearing of open items or when processing incoming payments.
  Cause:
  The error is generally caused by one of the following reasons:
  
  Key Mismatch: The old payment item and the new payment item have different keys (e.g., document number, fiscal year, company code). This can happen if the payment item was altered or if there was an attempt to link a payment to an incorrect item.
  Data Integrity Issues: There may be inconsistencies in the database or issues with the data integrity that lead to mismatched keys.
  Incorrect Configuration: Configuration settings in the payment processing or clearing settings may not align correctly, leading to this error.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Payment Item Keys: Verify the keys of both the old and new payment items. Ensure that they match and that you are trying to process the correct items.
  Review Payment Processing: If you are trying to clear items, ensure that the items you are attempting to clear are valid and have not been altered or deleted.
  Data Consistency Check: Run a consistency check on the relevant tables in the SAP database to identify any discrepancies. You may need to consult with your SAP Basis team for this.
  Recreate Payment Items: If the payment items are corrupted or mismatched, consider recreating the payment items or reversing the transaction and re-entering it.
  Consult Documentation: Check SAP Notes and documentation for any known issues or patches related to this error message. SAP Support may have specific recommendations based on your version and configuration.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including transaction codes, steps taken, and any relevant logs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as F-28 (Post Incoming Payments), F-32 (Clear Customer), and FBL5N (Customer Line Item Display) to help diagnose the issue.
  SAP Notes: Search for SAP Notes related to error 1P504 in the SAP Support Portal for any specific fixes or recommendations.
  User Forums: Check SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.