Community SupportHi tlaresch,
Based on my test, the result is a little different from yours. Create a dataflow connects to a ODBC DSN, save dataflow and configure gateway correctly for this dataflow. Then Edit dataflow entities, replace DSN with a new one, save the dataflow. Go to Manage Gateways remove the old ODBC data source, add a new ODBC data source points to the new DSN. When we go to the Dataflow Settings, the Gateway Connections has two data source, but it prompts us to add the previous ODBC in gateway:
Once we add the previous ODBC data source in gateway, the result is below:
I know it's a little strange we need to create two ODBC data sources in gateway though dataflow only has one ODBC data source. Before reporting the issue internally, I would like to ensure my test result is what you are concerning. Please run on-premises data gateway version 3000.31.3 (March 2020) as ours then test again to see if you get the same result as ours.
Best Regards,
Qiuyun Yu