1Q203 - Error in Structure of RFC Connection

SAP Error Message - Details

• Message type: E = Error

• Message class: 1Q - Messages In-House Banking

• Message number: 203

• Message text: Error in Structure of RFC Connection

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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AnswerBot

• What is the cause and solution for SAP error message 1Q203 - Error in Structure of RFC Connection ?

  The SAP error message 1Q203 indicates that there is an issue with the structure of the Remote Function Call (RFC) connection. This error typically arises when there is a mismatch or misconfiguration in the RFC settings between the SAP systems involved.
  Causes of Error 1Q203
  
  Inconsistent RFC Configuration: The RFC destination may not be correctly configured, leading to discrepancies in the expected structure.
  Version Mismatch: Different versions of SAP systems may have incompatible RFC structures.
  Network Issues: Problems with network connectivity can lead to incomplete or corrupted data being sent over the RFC connection.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Transport Layer Issues: Issues in the transport layer can also lead to this error, especially if there are changes in the system landscape.
  
  Solutions to Error 1Q203
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 and verify the settings of the RFC destination.
  Ensure that the target system is correctly defined and that the connection type is appropriate (e.g., TCP/IP).
  
  
  
  Test the RFC Connection:
  
  In transaction SM59, use the "Test Connection" option to check if the RFC connection is working properly.
  If the test fails, review the error messages for more specific information.
  
  
  
  Review System Versions:
  
  Ensure that both systems involved in the RFC call are compatible in terms of version and patch level.
  If there are significant differences, consider upgrading or applying patches.
  
  
  
  Check User Authorizations:
  
  Verify that the user credentials used for the RFC connection have the necessary authorizations to execute the required functions.
  
  
  
  Network Configuration:
  
  Check for any network issues that might be affecting the connection.
  Ensure that firewalls or other network security settings are not blocking the RFC communication.
  
  
  
  Review Transport Layer:
  
  If there have been recent changes in the system landscape, ensure that all transport requests have been properly imported and that there are no inconsistencies.
  
  
  
  Consult 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
  
  
  Transaction Codes: 
  
  SM59: Manage RFC destinations.
  ST22: Dump analysis, which can provide insights if the error is related to a program dump.
  SLG1: Application log, which can help in identifying issues related to the RFC call.
  
  
  
  Documentation: Review SAP documentation related to RFC connections and troubleshooting for more detailed guidance.
  
  
  If the issue persists after following these steps, it may be beneficial to engage SAP support for further assistance.