How To Fix 56559 - The online system already has control of the credit card buffer

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 559

• Message text: The online system already has control of the credit card buffer

Self-Explanatory Message

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• What is the cause and solution for SAP error message 56559 - The online system already has control of the credit card buffer ?

  The SAP error message 56559, "The online system already has control of the credit card buffer," typically occurs in the context of credit card processing within SAP systems, particularly when dealing with online transactions. This error indicates that the system is trying to access a credit card buffer that is already being used or controlled by another process or transaction.
  Cause:
  
  Concurrent Access: The error often arises when multiple processes or users attempt to access the same credit card buffer simultaneously. This can happen in high-traffic environments where multiple transactions are being processed at the same time.
  Session Management: If a session is not properly closed or if there are lingering sessions that have not released the credit card buffer, it can lead to this error.
  Configuration Issues: Incorrect configuration settings in the payment processing module or integration with payment gateways can also lead to this error.
  
  Solution:
  
  Check for Concurrent Transactions: Ensure that there are no other transactions currently processing the same credit card buffer. If possible, wait for the other transaction to complete before attempting to process again.
  Session Cleanup: If you suspect that there are lingering sessions, you may need to clear or reset the sessions. This can often be done by logging out and back into the system or by using transaction codes like SM12 (to check for locks) and SM21 (to check the system log).
  Review Configuration: Check the configuration settings related to credit card processing in your SAP system. Ensure that they are set up correctly and that there are no conflicts with payment gateway settings.
  Increase Buffer Size: If the issue persists due to high transaction volume, consider increasing the buffer size or optimizing the transaction processing to handle more concurrent requests.
  Consult Documentation: Refer to SAP documentation or notes related to credit card processing for any specific recommendations or patches that may address this issue.
  Contact SAP Support: If the problem continues after trying the above solutions, it may be necessary to contact SAP support for further assistance. They can provide insights based on the specific configuration and version of your SAP system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to view system logs), and ST22 (to check for dumps).
  SAP Notes: Search for SAP Notes related to error 56559 in the SAP Support Portal for any known issues or patches.
  System Performance: Monitor system performance and transaction logs to identify patterns that may lead to this error, especially during peak processing times.
  
  By following these steps, you should be able to diagnose and resolve the issue related to error message 56559 in your SAP system.