How To Fix CNV_10100101 - RFC connection error: &1 return code (SY-SUBRC) = &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10100 - Messages from package 10100

• Message number: 101

• Message text: RFC connection error: &1 return code (SY-SUBRC) = &2

What causes this issue?

A remote function call returned an error.

System Response

The return code of the system is &V2&.
The description of the error is &V1&.

How to fix this error?

Resolve the error, and execute the activity again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10100101 - RFC connection error: &1 return code (SY-SUBRC) = &2 ?

  The SAP error message CNV_10100101 RFC connection error: &1 return code (SY-SUBRC) = &2 typically indicates an issue with the Remote Function Call (RFC) connection in the SAP system. This error is often encountered during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC call.
  Configuration Errors: The RFC destination may not be configured correctly in transaction SM59.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Availability: The target system may be down or not reachable.
  Incorrect Parameters: The parameters passed in the RFC call may be incorrect or not matching the expected format.
  Firewall Restrictions: Firewalls or security settings may be blocking the RFC communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the systems is stable and that there are no firewalls blocking the communication.
  Verify RFC Destination:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Test the connection using the "Connection Test" option to see if it is working properly.
  
  
  Review User Authorizations: Ensure that the user ID used for the RFC connection has the necessary authorizations to perform the required actions.
  Check System Status: Verify that the target system is up and running and that the relevant services are active.
  Examine Logs: Check the system logs (transaction SM21) and the developer trace (transaction ST22) for any additional error messages that may provide more context.
  Adjust Parameters: Review the parameters being passed in the RFC call to ensure they are correct and in the expected format.
  
  Related Information:
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SICF: Check HTTP services if applicable
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC connections.
  Documentation: Review the SAP documentation for the specific tools or processes you are using (e.g., SLT, data migration tools) for any additional configuration or troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP Basis team or SAP support for further assistance.