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

56621 - Overview

• 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

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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 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