Disconnect QuickBooks from BLD Ops
Either of these ends the connection. The invoices stay in QuickBooks exactly as they are; only the app's ability to read and draft them ends.
In BLD Ops
Open the app → More → QuickBooks → Disconnect. The app tells Intuit to revoke its access and deletes the stored token at once.
In QuickBooks Online
Sign in to QuickBooks → the gear icon → Apps (or Manage connections) → BLD Ops → Disconnect. The next time the app tries to read, it sees the connection is gone and says so.
Intuit also ends an unused connection on its own after 100 days.
Questions: brandon@backlight.design.