How To Fix CNV_LTHCM_G_10012 - Communication failure when calling function module '&1', destination &2:

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_LTHCM_G_10 - LT HCM: General Message Class

• Message number: 012

• Message text: Communication failure when calling function module '&1', destination &2:

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_LTHCM_G_10012 - Communication failure when calling function module '&1', destination &2: ?

  The SAP error message CNV_LTHCM_G_10012 indicates a communication failure when calling a function module. This error typically arises in the context of data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools.
  Cause:
  
  Network Issues: There may be network connectivity problems between the SAP system and the destination system.
  Incorrect Destination Configuration: The destination system may not be correctly configured in the SAP system (e.g., RFC destination settings).
  Authorization Issues: The user or service account may not have the necessary authorizations to access the function module in the destination system.
  Function Module Not Available: The specified function module may not exist in the destination system or may not be activated.
  Timeouts: The call to the function module may be timing out due to long processing times or heavy load on the destination system.
  
  Solution:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the SAP systems. You can use tools like ping or telnet to test connectivity.
  Verify RFC Destination: Go to transaction SM59 and check the configuration of the RFC destination (&2). Ensure that it is correctly set up and that the connection test is successful.
  Check Authorizations: Ensure that the user or service account has the necessary authorizations to execute the function module in the destination system.
  Function Module Availability: Verify that the function module (&1) exists in the destination system and is active. You can check this in transaction SE37 or SE80.
  Increase Timeout Settings: If the function module takes a long time to execute, consider increasing the timeout settings in the RFC destination configuration.
  Review Logs: Check the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that may provide more context about the failure.
  
  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 specific data migration tool or process you are using, as it may contain specific guidelines for resolving communication issues.
  SAP Community: Consider checking the SAP Community forums for similar issues reported by other users and potential solutions.
  
  If the issue persists after following these steps, it may be beneficial to engage SAP support for further assistance.