How To Fix AG203 - RFC error in call &1: &2&3

SAP Error Message - Details

• Message type: E = Error

• Message class: AG - Nachrichten ATP-Server

• Message number: 203

• Message text: RFC error in call &1: &2&3

What causes this issue?

The RFC error &2&&3& occurred while calling up function &1&.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AG203 - RFC error in call &1: &2&3 ?

  The SAP error message AG203, which states "RFC error in call &1: &2&3," typically indicates that there is an issue with a Remote Function Call (RFC) in the SAP system. This error can occur for various reasons, and understanding the cause is essential for troubleshooting and resolving the issue.
  Causes of AG203 RFC Error
  
  
  Network Issues: Problems with the network connection between the SAP systems can lead to RFC errors. This could be due to firewalls, network outages, or misconfigured network settings.
  
  
  RFC Destination Configuration: The RFC destination may not be correctly configured. This includes incorrect parameters such as the target system's IP address, system number, or client.
  
  
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to execute the function module or access the required data.
  
  
  System Availability: The target system may be down or not available, leading to an inability to establish a connection.
  
  
  Function Module Issues: The function module being called may not exist, may be incorrectly implemented, or may have been changed in a way that is incompatible with the calling program.
  
  
  Version Compatibility: There may be compatibility issues between different versions of SAP systems involved in the RFC call.
  
  
  Solutions to AG203 RFC Error
  
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems. You can use tools like ping or traceroute to diagnose network issues.
  
  
  Verify RFC Destination: Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination. Ensure that all parameters are correct and that the connection test is successful.
  
  
  Review Authorizations: Check the user authorizations for the user ID being used for the RFC call. Ensure that the user has the necessary permissions to execute the function module.
  
  
  Check System Status: Verify that the target system is up and running. You can check the system status in transaction SM51 or by logging into the target system directly.
  
  
  Function Module Validation: Ensure that the function module being called exists and is correctly implemented. You can check this in transaction SE37 or SE80.
  
  
  Review Logs: Check the system logs for any additional error messages or details that can provide more context about the issue. You can use transaction SM21 for system logs and ST22 for dump analysis.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address known issues related to the AG203 error. You can search for notes in the SAP Support Portal.
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for further assistance.
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SM21 - System Log
  ST22 - Dump Analysis
  SE37 - Function Module
  SE80 - Object Navigator
  
  
  
  Documentation: Review SAP documentation related to RFC and remote calls for more detailed information on configuration and troubleshooting.
  
  
  By following these steps, you should be able to identify the cause of the AG203 RFC error and implement a solution to resolve it.