How To Fix BGRFC116 - Invalid unit ID

SAP Error Message - Details

• Message type: E = Error

• Message class: BGRFC - qRFC - New Background RFC

• Message number: 116

• Message text: Invalid unit ID

What causes this issue?

An invalid unit ID has been selected for this action, which means the
action cannot be performed.

System Response

The action terminates.

How to fix this error?

Select a valid unit, refreshing the display first if required.

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 BGRFC116 - Invalid unit ID ?

  The SAP error message BGRFC116 Invalid unit ID typically occurs in the context of the Background RFC (BGRFC) framework, which is used for asynchronous communication between SAP systems. This error indicates that the system is unable to find a valid unit ID for the BGRFC call being made.
  Causes:
  
  Incorrect Unit ID: The unit ID specified in the BGRFC call may be incorrect or does not exist in the system.
  Configuration Issues: There may be issues with the BGRFC configuration, such as missing or misconfigured entries in the BGRFC tables.
  System Issues: The BGRFC framework may not be properly initialized or there may be issues with the underlying transport layer.
  Network Issues: If the BGRFC is trying to communicate with another system, network issues could prevent the proper identification of the unit ID.
  
  Solutions:
  
  Check Unit ID: Verify that the unit ID being used in the BGRFC call is correct and exists in the system. You can check this in transaction SM58 (for transactional RFC) or SLG1 (for logging).
  Review BGRFC Configuration: Ensure that the BGRFC configuration is correct. You can check the configuration in transaction SMQR (for registered queues) and SMQ1/SMQ2 (for monitoring queues).
  Restart BGRFC: Sometimes, restarting the BGRFC framework can resolve transient issues. You can do this by using transaction SM58 to clear any stuck entries.
  Check Logs: Review the logs in transaction SLG1 for any additional error messages or details that could provide more context about the issue.
  Network Configuration: If the BGRFC is communicating with another system, ensure that the network configuration is correct and that there are no connectivity issues.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  
  Related Information:
  
  BGRFC Overview: Background RFC is a mechanism in SAP that allows for asynchronous communication between systems, which is useful for load balancing and performance optimization.
  Monitoring Tools: Use transaction codes like SMQ1 (for outbound queues) and SMQ2 (for inbound queues) to monitor the status of BGRFC queues.
  SAP Documentation: Refer to the official SAP documentation for more detailed information on BGRFC and troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.