How To Fix R3039 - tRFC: Start = &1 &2, End = &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: R3 - Service API messages

• Message number: 039

• Message text: tRFC: Start = &1 &2, End = &3 &4

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message R3039 - tRFC: Start = &1 &2, End = &3 &4 ?

  The SAP error message R3039, which indicates a problem with the transactional RFC (tRFC) communication, typically arises when there is an issue with the processing of a tRFC call. The message format "tRFC: Start = &1 &2, End = &3 &4" suggests that there is a problem with the start and end of a tRFC transaction.
  Cause:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the tRFC communication.
  Configuration Issues: The RFC destination may not be correctly configured, or the target system may not be available.
  System Load: High system load or performance issues can lead to timeouts or failures in processing tRFC calls.
  Database Locking: If the database is locked or if there are issues with database transactions, it can prevent the tRFC from completing successfully.
  Authorization Issues: The user or system may not have the necessary authorizations to execute the tRFC call.
  
  Solution:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or traceroute to diagnose network issues.
  Verify RFC Destination: Go to transaction SM59 and check the configuration of the RFC destination. Ensure that it is correctly set up and that the target system is reachable.
  Monitor System Performance: Use transaction SM50 or SM66 to monitor system performance and check for any long-running processes that may be causing delays.
  Check for Database Locks: Use transaction SM12 to check for any database locks that may be affecting the tRFC processing.
  Review Authorizations: Ensure that the user or system executing the tRFC has the necessary authorizations. You can check this in transaction SU53 after the error occurs.
  Check tRFC Queue: Use transaction SM58 to monitor the tRFC queue and check for any failed entries. You can analyze the error messages and take corrective actions as needed.
  
  Related Information:
  
  tRFC: Transactional Remote Function Call is a mechanism in SAP that allows for reliable communication between different SAP systems or between an SAP system and an external system.
  Error Handling: If a tRFC call fails, it is usually retried automatically based on the configuration. However, persistent failures need to be investigated and resolved.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address specific issues related to tRFC errors.
  
  If the problem persists after following these steps, it may be necessary to engage SAP support for further assistance.