How To Fix E1402 - Code pages for tRFC port & could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: E1 - Messages for IDoc Basis

• Message number: 402

• Message text: Code pages for tRFC port & could not be determined

What causes this issue?

You want to send IDocs from a Unicode system to an MDMP system.
This is only possible if the sending Unicode system recognizes all
languages implemented in the destination system, along with their code
pages. The system could not determine this information. The information
was not available from previous calls and it could not be determined
from the destination system at runtime.

System Response

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

How to fix this error?

You can switch the IDoc back to the status 30 (IDoc can be sent) using
transaction BD87.
Load the code pages of the destination system to this tRFC port before
the next IDoc is sent.

<DS:TRAN.WE87>Execute Function</>
ENDIF

Procedure for System Administrators

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E1402 - Code pages for tRFC port & could not be determined ?

  The SAP error message E1402, which states "Code pages for tRFC port could not be determined," typically occurs in the context of the SAP system's communication settings, particularly when dealing with tRFC (Transactional Remote Function Call) connections. This error indicates that the system is unable to determine the appropriate code pages for the specified tRFC port, which can lead to issues in data transmission between systems.
  Causes:
  
  Missing or Incorrect Code Page Configuration: The code pages for the tRFC port may not be defined in the system, or the configuration may be incorrect.
  Incorrect RFC Destination: The RFC destination used for the tRFC call may not be set up correctly, leading to issues in determining the code pages.
  Network Issues: There may be network-related issues that prevent the system from accessing the necessary configuration for the tRFC port.
  System Profile Issues: The system profile may not have the necessary parameters set for handling code pages.
  
  Solutions:
  
  
  Check Code Page Configuration:
  
  Go to transaction RZ10 to check the profile parameters related to code pages.
  Ensure that the code pages for the relevant tRFC port are correctly defined.
  
  
  
  Verify RFC Destination:
  
  Use transaction SM59 to check the configuration of the RFC destination used for the tRFC call.
  Ensure that the destination is correctly configured and that the connection is working.
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Network Configuration:
  
  Ensure that there are no network issues preventing communication between the systems involved in the tRFC call.
  Check firewall settings, network routes, and any other network-related configurations.
  
  
  
  Profile Parameters:
  
  Check the instance profile for parameters related to code pages, such as icm/HTTP/enable and icm/HTTP/port.
  Make sure that the parameters are set correctly and that the instance has been restarted if changes were made.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  tRFC: Transactional RFC is a protocol used in SAP for asynchronous communication between systems, ensuring that the data is processed exactly once.
  Code Pages: Code pages define the character encoding used for data transmission. Incorrect code page settings can lead to data corruption or communication failures.
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the E1402 error in your SAP system.