Thanks for reaching out to us, @jon63,
I want to make sure I'm clear on this. May I know if you're using QuickBooks Self-Employed or QuickBooks Online for small business?
I'm asking because QBSE, at the moment, can't connect directly to Jobber. If you want to set it up, make sure to reach out to their service provider to get assistance with syncing data into your Self-Employed account.
However, if you're using QuickBooks Online, visit our App Center for instructions on how to connect the app to our program. Check out this link to for the steps and how to get in touch with Jobber support: https://quickbooks.intuit.com/app/apps/appdetails/jobber/en-us/
Please let me know how it goes. I want to make sure this setup concern is taken care of for you. I'm also here if you need anything else with QuickBooks.