In SAP Lumira, you can check all the connections for an existing application and document associated with each connection and you can change the data source for an existing connection.
To view existing connections, close all the data set.
Step 1 − Click New and close the Add new data set window. In the left pane, it will show you the Connections option.
Step 2 − A new window will open with a list of all the existing connections and associated documents. Click a connection and you can change the target data source.