How To Fix SAP_NWBC037 - RFC destination for alias &1 is undefined or incomplete

SAP Error Message - Details

• Message type: E = Error

• Message class: SAP_NWBC - NWBC Messages

• Message number: 037

• Message text: RFC destination for alias &1 is undefined or incomplete

What causes this issue?

RFC destination for sm59 alias &V1& is undefined, or there is no service
number found.

System Response

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

How to fix this error?

Check transaction SM59 for RFC destination with name &V1& (or &V1&
_RFC).If it does not exist - add one.
Be sure, that you select "Load Balancing" = NO, and provide explicit
server name and service number.
For more details see NWBC documentation for remote system configuration
and FAQ note 1638715.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SAP_NWBC037 - RFC destination for alias &1 is undefined or incomplete ?

  The SAP error message SAP_NWBC037 indicates that there is an issue with the RFC (Remote Function Call) destination for a specific alias in the SAP NetWeaver Business Client (NWBC). This error typically arises when the system cannot find a valid RFC destination that corresponds to the specified alias, or the destination is not properly configured.
  Cause
  
  Undefined RFC Destination: The RFC destination for the specified alias does not exist in the system.
  Incomplete Configuration: The RFC destination exists but is not fully configured (e.g., missing parameters such as the target system, user credentials, etc.).
  Authorization Issues: The user may not have the necessary authorizations to access the specified RFC destination.
  Network Issues: There may be network connectivity issues preventing access to the target system.
  
  Solution
  To resolve the error, you can follow these steps:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Look for the RFC destination that corresponds to the alias mentioned in the error message.
  Ensure that the destination is defined and correctly configured.
  
  
  
  Configuration:
  
  If the RFC destination is missing, create a new one with the appropriate settings (e.g., target host, system number, client, user, password).
  If it exists but is incomplete, fill in the necessary details and test the connection.
  
  
  
  Test Connection:
  
  In transaction SM59, select the RFC destination and use the "Test Connection" button to verify that the connection to the target system is working correctly.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the RFC destination. This may involve checking roles and profiles assigned to the user.
  
  
  
  Network Configuration:
  
  Verify that there are no network issues preventing access to the target system. This may involve checking firewall settings, VPN connections, or other network configurations.
  
  
  
  Consult Documentation:
  
  If you are unsure about the configuration settings, refer to SAP documentation or consult with your SAP Basis team for guidance.
  
  
  
  Related Information
  
  Transaction Codes: 
  
  SM59: For managing RFC destinations.
  SU01: For user management and authorization checks.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to RFC destinations or NWBC configurations.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions 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 SAP_NWBC037 error message.