Before you go-live, you should have done these steps;
- Configures business Central according to the guide.
- Made a test case to make sure you are sending out emails with PDFs correctly.
- Updated the customer cards according to the guide.
If all of above is done, and you are ready to go-live, go back to 'Job Queue Entries' in Business Central and restart the 'GEDIQUEUE' and 'GEDIDELETE' job queues to start processing queued messages in our app.