How To Fix B1470 - An error has occurred during message transmission.

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 470

• Message text: An error has occurred during message transmission.

What causes this issue?

An erorr has occurred when sending the message &v1& to the system &v2&.
To find out the cause of the error, refer to the next message.

How to fix this error?

The procedure can be continued without the system &v1&. Fix the error
and restart the procedure for this system.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1470 - An error has occurred during message transmission. ?

  The SAP error message B1470, which states "An error has occurred during message transmission," typically indicates a problem with the communication between systems or components in the SAP environment. This error can occur in various contexts, such as during the processing of IDocs, RFC calls, or other forms of inter-system communication.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP systems can lead to message transmission errors.
  Configuration Errors: Incorrect settings in the communication configuration (e.g., RFC destinations, logical systems) can cause transmission failures.
  System Load: High system load or performance issues can lead to timeouts or dropped connections during message transmission.
  IDoc Issues: If the error occurs during IDoc processing, it may be due to issues with the IDoc format, data inconsistencies, or missing segments.
  Authorization Issues: Lack of proper authorizations for the user or system trying to send or receive messages can also lead to transmission errors.
  Transport Layer Issues: Problems with the transport layer (e.g., SAP PI/PO, middleware) can affect message delivery.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the systems is stable and functioning properly. Use tools like ping or traceroute to diagnose connectivity issues.
  Review Configuration Settings: Verify the configuration of RFC destinations, logical systems, and any relevant communication settings in transaction codes like SM59 (RFC destinations) and BD54 (Logical Systems).
  Monitor System Performance: Check system performance metrics to identify any bottlenecks or high load situations that may be affecting message transmission.
  Analyze IDocs: If the error is related to IDocs, use transaction WE02 or WE05 to analyze the IDocs for errors or inconsistencies. Check for missing segments or incorrect data.
  Check Authorizations: Ensure that the user or system has the necessary authorizations to send and receive messages. Use transaction SU53 to analyze authorization issues.
  Review Logs: Check the application logs (transaction SLG1) and system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to message transmission errors.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 (RFC destinations), WE02/WE05 (IDoc monitoring), SLG1 (application logs), and SM21 (system logs).
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the B1470 error in your SAP environment.