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

CNV_LTHCM_G_30002 - Overview

• 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

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CNV_LTHCM_G_30002 - Details

• 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