How To Fix WT229 - Unexpected error while starting remote function call &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WT - Retail: Replenishment

• Message number: 229

• Message text: Unexpected error while starting remote function call &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WT229 - Unexpected error while starting remote function call &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WT229 Unexpected error while starting remote function call &1
  
  Meaning / Cause:
  
  This error occurs when the SAP system tries to initiate a Remote Function Call (RFC) to another system or client, but the call fails unexpectedly.
  The placeholder &1 typically contains the name of the RFC destination or the function module that was being called.
  Common causes include:
  
  Network connectivity issues between the calling system and the target system.
  Incorrect or invalid RFC destination configuration.
  The target system is down or not reachable.
  Authorization or security restrictions preventing the RFC call.
  Version incompatibility or missing function modules in the target system.
  Problems with the gateway or dispatcher in the SAP system.
  Issues with the SAP kernel or system parameters related to RFC.
  
  
  
  
  Possible Solutions:
  
  
  Check RFC Destination:
  
  Go to transaction SM59.
  Test the RFC destination mentioned in the error message.
  Ensure the connection test is successful.
  Verify the target host, system number, user credentials, and logon details.
  
  
  
  Check Network Connectivity:
  
  Ping the target system from the source system.
  Check firewall settings or network restrictions that might block the connection.
  
  
  
  Check Target System Status:
  
  Ensure the target SAP system is up and running.
  Check if the gateway and dispatcher are active.
  
  
  
  Check Authorizations:
  
  Verify that the user used for the RFC has the necessary authorizations.
  Check roles and profiles assigned to the RFC user.
  
  
  
  Check SAP Kernel and Patches:
  
  Ensure both source and target systems are running compatible SAP kernel versions.
  Apply any relevant SAP Notes or patches related to RFC issues.
  
  
  
  Check Gateway and Dispatcher Logs:
  
  Use transaction SMGW to check the gateway logs for errors.
  Check system logs in SM21 for related messages.
  
  
  
  Debugging:
  
  If possible, enable trace for RFC calls in SM59 (trace option).
  Analyze the trace to find the exact point of failure.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59 - RFC Destinations
  SMGW - Gateway Monitor
  SM21 - System Log
  ST22 - Dump Analysis (in case of runtime errors)
  SM50/SM66 - Work Process Monitoring
  
  
  
  SAP Notes:
  
  Search SAP Support Portal for notes related to WT229 or RFC errors.
  Common notes address kernel patches, gateway issues, or authorization problems.
  
  
  
  RFC Types:
  
  Ensure you are using the correct RFC type (3 - asynchronous, 4 - synchronous, etc.) as per your scenario.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WT229 Unexpected error starting RFC call
  
  
  Cause
  Network, configuration, authorization, or system issues
  
  
  Solution
  Check RFC destination, network, authorizations, system status, and logs
  
  
  Tools
  SM59, SMGW, SM21, ST22, SM50/SM66
  
  
  
  
  If you provide the exact RFC destination or function module name from the error message, I can help you with more specific troubleshooting steps.