How To Fix CNV_LTHCM_G_30002 - Communication failure in call of FM '&1' with destination &2:

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_LTHCM_G_30 -

• Message number: 002

• Message text: Communication failure in call of FM '&1' with destination &2:

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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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_LTHCM_G_30002 - Communication failure in call of FM '&1' with destination &2: ?

  The SAP error message CNV_LTHCM_G_30002 indicates a communication failure when calling a function module (FM) in a specific destination. This error typically arises in the context of data migration or conversion processes, particularly when using the SAP Landscape Transformation (LT) tools.
  Cause:
  
  Network Issues: There may be network connectivity problems between the SAP system and the destination system.
  Configuration Issues: The RFC (Remote Function Call) destination may not be correctly configured in the SAP system.
  Authorization Issues: The user may not have the necessary authorizations to execute the function module in the target system.
  Function Module Issues: The function module being called may not exist in the target system or may have been deactivated.
  System Load: The target system may be under heavy load, causing timeouts or communication failures.
  
  Solution:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the source and target systems. You can use tools like ping or telnet to test connectivity.
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination specified in the error message.
  Test the connection to ensure it is working correctly.
  
  
  Check Authorizations: Ensure that the user executing the function module has the necessary authorizations in the target system.
  Validate Function Module: 
  
  Check if the function module (&1 in the error message) exists in the target system.
  Ensure that it is active and has the correct interface.
  
  
  Monitor System Load: Check the performance and load of the target system. If it is overloaded, consider scheduling the operation during off-peak hours.
  Review Logs: Check the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that may provide more context.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the documentation for the SAP Landscape Transformation tools for any specific requirements or configurations needed for successful data migration.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the issue persists after following these steps, it may be beneficial to engage SAP support for further assistance.