How To Fix BCOMEC016 - Connection &1 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: BCOMEC - Business Communication: Messages of external components

• Message number: 016

• Message text: Connection &1 is unknown

What causes this issue?

The connection &V1& is unknown to the external software component.
Further information on the external software component:
&V3&

System Response

The function could not be executed.

How to fix this error?

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

Procedure for System Administrators

The error can occur in 2 different places:
1. In the connected gateway
2. In the underlying CTI software
In this case the error occurred in (&V4&).
The return code for the underlying CTI software is: &V2&

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BCOMEC016 - Connection &1 is unknown ?

  The SAP error message BCOMEC016, which states "Connection &1 is unknown," typically indicates that there is an issue with the connection configuration in the SAP system. This error can occur in various contexts, such as when trying to establish a connection to a database, an external system, or a communication channel.
  Causes:
  
  Incorrect Connection Name: The connection name specified in the configuration does not match any existing connection in the system.
  Connection Not Defined: The connection has not been defined in the SAP system.
  Configuration Issues: There may be issues with the configuration settings for the connection, such as incorrect parameters or missing details.
  Authorization Issues: The user may not have the necessary authorizations to access the specified connection.
  Network Issues: There could be network-related problems preventing the connection from being established.
  
  Solutions:
  
  Verify Connection Name: Check the connection name specified in the configuration and ensure it matches the name defined in the SAP system.
  Define the Connection: If the connection is not defined, you will need to create it in the SAP system using transaction codes like SM59 (for RFC connections) or DBACOCKPIT (for database connections).
  Check Configuration Settings: Review the configuration settings for the connection to ensure all required parameters are correctly set.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the connection. You may need to consult with your security team to verify this.
  Test the Connection: Use the connection test feature in transaction SM59 to check if the connection can be established successfully.
  Review Network Settings: If the connection involves external systems, check for any network issues, such as firewalls or routing problems that may be blocking the connection.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 for managing RFC connections, DBACOCKPIT for database connections, and SU01 for user authorizations.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message BCOMEC016.
  Logs and Traces: Review system logs and traces for additional information that may help diagnose the issue. You can use transaction SM21 for system logs and ST22 for dumps.
  Documentation: Refer to SAP documentation for detailed information on connection management and troubleshooting.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or your internal SAP Basis team for further assistance.