How To Fix APOC_OR_MESSAGES401 - A technical error occured while calling B2B integration services.

SAP Error Message - Details

• Message type: E = Error

• Message class: APOC_OR_MESSAGES - Messages for Output Control

• Message number: 401

• Message text: A technical error occured while calling B2B integration services.

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.

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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 APOC_OR_MESSAGES401 - A technical error occured while calling B2B integration services. ?

  The error message "APOC_OR_MESSAGES401 A technical error occurred while calling B2B integration services" in SAP typically indicates that there is a problem with the integration between SAP and the B2B services. This can occur in various scenarios, such as when trying to send or receive messages, or when there is a failure in the communication layer.
  Possible Causes:
  
  Network Issues: There may be connectivity problems between the SAP system and the B2B integration services.
  Configuration Errors: Incorrect configuration settings in the B2B integration or in the SAP system can lead to this error.
  Service Availability: The B2B integration services may be down or not reachable due to maintenance or other issues.
  Authentication Issues: Problems with user credentials or tokens used for authentication can cause this error.
  Data Format Issues: The data being sent or received may not conform to the expected format, leading to processing errors.
  Timeouts: The request may be timing out due to long processing times or heavy load on the B2B services.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the B2B integration services. You can use tools like ping or traceroute to diagnose network issues.
  Review Configuration Settings: Verify that all configuration settings related to B2B integration are correct. This includes endpoint URLs, authentication methods, and any required parameters.
  Service Status: Check the status of the B2B integration services to ensure they are up and running. If they are down, you may need to wait until they are back online.
  Authentication Verification: Ensure that the credentials or tokens used for authentication are valid and have not expired.
  Data Validation: Review the data being sent or received to ensure it meets the expected format and requirements.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the SAP system or the B2B integration configuration.
  Check Logs: Review the logs in both the SAP system and the B2B integration services for more detailed error messages that can provide additional context.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches and updates.
  Documentation: Review the official SAP documentation for B2B integration services to ensure that all configurations are set up correctly.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.