How To Fix CNVMBT251 - Function module RFC_READ_R3_DESTINATION send &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 251

• Message text: Function module RFC_READ_R3_DESTINATION send &1.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBT251 - Function module RFC_READ_R3_DESTINATION send &1. ?

  The SAP error message CNVMBT251, which states "Function module RFC_READ_R3_DESTINATION send &1," typically occurs in the context of data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services tools. This error indicates that there is an issue with the Remote Function Call (RFC) destination configuration.
  Cause:
  
  RFC Destination Not Configured: The RFC destination that the function module is trying to access may not be configured correctly in the SAP system.
  Network Issues: There may be network connectivity issues between the systems involved.
  Authorization Issues: The user executing the function may not have the necessary authorizations to access the RFC destination.
  Incorrect Parameters: The parameters being passed to the function module may be incorrect or incomplete.
  System Configuration: There may be issues with the system configuration or the function module itself.
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Verify that the RFC destination is correctly configured and is pointing to the right target system.
  Test the connection to ensure it is working properly.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to execute the function module and access the RFC destination.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues preventing communication between the systems.
  You can use tools like ping or telnet to check connectivity.
  
  
  
  Review Function Module Parameters:
  
  Check the parameters being passed to the function module to ensure they are correct and complete.
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that may provide more context.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SM59 (RFC Destinations)
  SM21 (System Log)
  SLG1 (Application Log)
  
  
  Function Module: RFC_READ_R3_DESTINATION is used to read the configuration of RFC destinations in the SAP system.
  Documentation: Review the SAP documentation related to RFC connections and data migration for best practices and troubleshooting tips.
  
  By following these steps, you should be able to identify and resolve the issue causing the CNVMBT251 error message.