How To Fix RA655 - &1 is not an ABAP connection; cannot perform connection test

SAP Error Message - Details

• Message type: E = Error

• Message class: RA - Monitoring structure dialog message

• Message number: 655

• Message text: &1 is not an ABAP connection; cannot perform connection test

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RA655 - &1 is not an ABAP connection; cannot perform connection test ?

  The SAP error message RA655 indicates that the system is unable to perform a connection test because the specified connection is not recognized as an ABAP connection. This error typically arises in the context of configuring or testing connections in SAP systems, particularly when dealing with RFC (Remote Function Call) connections.
  Cause:
  
  Incorrect Connection Type: The connection you are trying to test is not set up as an ABAP connection. This could happen if the connection type is incorrectly configured in the SAP system.
  Configuration Issues: There may be issues in the configuration of the RFC destination in transaction SM59. If the destination is not properly defined or if the connection parameters are incorrect, this error can occur.
  Network Issues: There could be underlying network issues preventing the connection from being established, although this is less likely to trigger this specific error message.
  Authorization Issues: The user trying to perform the connection test may not have the necessary authorizations to access the specified connection.
  
  Solution:
  
  
  Check Connection Type:
  
  Go to transaction SM59 and locate the RFC destination that is causing the issue.
  Ensure that the connection type is set to "ABAP Connection". If it is set to a different type (like "TCP/IP Connection"), you will need to change it to "ABAP Connection".
  
  
  
  Review Configuration:
  
  Verify that all the parameters for the RFC destination are correctly configured. This includes the target host, system number, client, user, password, and any other relevant settings.
  Test the connection again after making any necessary changes.
  
  
  
  Check Authorizations:
  
  Ensure that the user account you are using to perform the connection test has the necessary authorizations to access the RFC destination. You may need to check with your SAP security team if you suspect authorization issues.
  
  
  
  Network Configuration:
  
  If the connection type is correct and the configuration appears to be fine, check for any network issues that might be affecting connectivity. This could involve checking firewalls, network routes, or other network-related settings.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message. There may be patches or updates that can resolve underlying issues.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SM59: To manage RFC destinations.
  SU01: To manage user authorizations.
  
  
  Documentation: Review SAP documentation on RFC connections and troubleshooting connection issues.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the RA655 error message in your SAP system.