Hi, you can also find an example of a connector with drill back in the documentation:
Connector Data Source (onestream.com)
However, maybe a drill back may not be necessary here? You are pulling data from a BI Blend table and users need to see the source result details in an easy to consume way. Drill back is one option, but a nice dashboard with some relational blend features may be another nice way to go about it. E.g. a cube view with the cube data can be on the left and a grid with the BI Blend source data on the right which displays the details of a clicked-on source POV from the cube view.
