How To Fix /SAPPO/ACR110 - &1: RFC dialog &2 has connection type &3. It must be 3 or I

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPPO/ACR -

• Message number: 110

• Message text: &1: RFC dialog &2 has connection type &3. It must be 3 or I

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPPO/ACR110 - &1: RFC dialog &2 has connection type &3. It must be 3 or I ?

  The SAP error message /SAPPO/ACR110 &1: RFC dialog &2 has connection type &3. It must be 3 or I typically indicates an issue with the configuration of Remote Function Call (RFC) connections in your SAP system. This error arises when the connection type of an RFC dialog does not meet the expected criteria.
  Cause:
  
  
  Connection Type Mismatch: The error suggests that the RFC connection type is not set to the expected values. In SAP, RFC connection types can be:
  
  3: TCP/IP connection
  I: Internet connection
  If the connection type is something other than these (e.g., 1 for TCP/IP with a specific destination or 2 for a different type), the system will throw this error.
  
  
  
  Configuration Issues: There may be a misconfiguration in the RFC destination settings in transaction SM59, where the connection type is defined.
  
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59.
  Locate the RFC destination that is causing the issue.
  Check the connection type defined for that RFC destination.
  Ensure that the connection type is set to either 3 (TCP/IP) or I (Internet).
  
  
  
  Modify Connection Type:
  
  If the connection type is incorrect, modify it to the appropriate type (3 or I).
  Save the changes and test the connection to ensure it is working correctly.
  
  
  
  Check for Dependencies:
  
  Ensure that any dependent systems or configurations that rely on this RFC connection are also correctly set up.
  
  
  
  Restart Services: In some cases, it may be necessary to restart the relevant SAP services or the application server to apply the changes.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SM37: To check job logs if the error is related to background jobs.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on RFC connection types and their configurations.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  
  By following these steps, you should be able to resolve the error and ensure that the RFC connections are configured correctly.