How To Fix SAP_NWBC036 - Target system alias "&1" (or "&1_RFC") for entry &2 is invalid.

SAP Error Message - Details

• Message type: E = Error

• Message class: SAP_NWBC - NWBC Messages

• Message number: 036

• Message text: Target system alias "&1" (or "&1_RFC") for entry &2 is invalid.

What causes this issue?

Target system alias "&V1&" (or "&V1&_RFC") for entry &V2& is invalid or
not of destination type "3".

System Response

The URL for this entry was not generated.

How to fix this error?

Check transaction SM59 and create/correct mentioned system alias.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SAP_NWBC036 - Target system alias "&1" (or "&1_RFC") for entry &2 is invalid. ?

  The SAP error message SAP_NWBC036 indicates that there is an issue with the target system alias in the context of the SAP NetWeaver Business Client (NWBC). This error typically arises when the system is unable to resolve the specified target system alias, which can be due to various reasons.
  Cause:
  
  Invalid Target System Alias: The alias specified in the configuration does not exist or is incorrectly defined.
  RFC Destination Issues: The RFC destination associated with the target system alias is not correctly configured or is missing.
  Authorization Issues: The user may not have the necessary authorizations to access the specified target system.
  Network Issues: There may be network connectivity issues preventing access to the target system.
  Configuration Errors: There may be errors in the configuration settings in the SAP system or in the NWBC settings.
  
  Solution:
  
  
  Check Target System Alias:
  
  Verify that the target system alias specified in the error message is correctly defined in the system.
  Go to transaction SM59 and check the RFC destinations. Ensure that the alias exists and is correctly configured.
  
  
  
  Validate RFC Destination:
  
  Ensure that the RFC destination is active and that the connection is working. You can test the connection in transaction SM59 by selecting the RFC destination and clicking on "Connection Test".
  
  
  
  Review Authorizations:
  
  Check if the user has the necessary authorizations to access the target system. This may involve checking roles and profiles assigned to the user.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues preventing access to the target system. This may involve checking firewall settings or network configurations.
  
  
  
  Configuration Review:
  
  Review the configuration settings in the NWBC and ensure that they are correctly set up. This may involve checking the configuration in transaction NWBC or related settings.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to NWBC and RFC destinations for any specific guidance or troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: For managing RFC destinations.
  SU01: For user management and authorization checks.
  NWBC: For accessing the NetWeaver Business Client settings.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Logs and Traces: If the issue persists, consider checking system logs (transaction SM21) or traces (transaction ST01) for more detailed error information.
  
  
  By following these steps, you should be able to identify and resolve the issue related to the SAP_NWBC036 error message.