How To Fix 56621 - Duplicate read of credit card message not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: 56 - HR TRAVEL: Messages for Trip Costs Dialog

• Message number: 621

• Message text: Duplicate read of credit card message not possible

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 56621 - Duplicate read of credit card message not possible ?

  The SAP error message "56621 Duplicate read of credit card message not possible" typically occurs in the context of payment processing, particularly when dealing with credit card transactions. This error indicates that there is an attempt to read or process a credit card transaction that has already been processed or read previously, leading to a duplication issue.
  Causes:
  
  Duplicate Transaction Attempt: The most common cause is that the system is trying to process the same credit card transaction more than once.
  Session or Transaction State: If a session is not properly closed or if there is a failure in the transaction state management, it may lead to the system thinking that a transaction is still active.
  Configuration Issues: Incorrect configuration in the payment processing module or integration with external payment gateways can lead to this error.
  Data Integrity Issues: Problems with the data being sent to or received from the payment processor can also trigger this error.
  
  Solutions:
  
  Check Transaction Logs: Review the transaction logs to identify if the transaction was indeed processed previously. This can help confirm whether the error is due to a genuine duplicate attempt.
  Session Management: Ensure that sessions are properly managed and closed after transactions are completed. This can help prevent the system from trying to re-read the same transaction.
  Review Configuration: Check the configuration settings for the payment processing module to ensure that they are set up correctly. This includes settings related to transaction handling and integration with payment gateways.
  Error Handling Logic: Implement or review error handling logic in the application to gracefully handle cases where a duplicate transaction is attempted.
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance related to the version of SAP you are using, as there may be version-specific considerations.
  Contact Support: If the issue persists, consider reaching out to SAP support or your system administrator for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide patches or updates that could resolve the issue.
  Payment Gateway Documentation: If you are using a third-party payment gateway, consult their documentation for any known issues or configurations that could lead to this error.
  User Forums: Engage with SAP user communities or forums where similar issues may have been discussed, as other users may have encountered and resolved the same error.
  
  By following these steps, you should be able to diagnose and resolve the "56621 Duplicate read of credit card message not possible" error in your SAP system.