How to enable activity sharing with Siri?
To enable activity sharing
1. Open the Bigin app on your iPad.
2. Tap on Settings 
at the bottom right of the screen.
Under "Manage Privacy", you can find the title "Privacy & Security".
3. Tap on Privacy & Security > Share Activities with Siri.
4. Tap the toggle switch 
to enable activity sharing with Siri.
Info: Once you've enabled activity sharing, your Bigin app usage pattern is shared with Apple for improved Shortcuts and Widget suggestions.