QuickBooks email invoices fails after Office channel switch

Scenario

QuickBooks stops sending invoices through Outlook after an Office app or channel update.

Recommended Resolution Path

1. Confirm Outlook is the default mail client and matches the supported bitness for the QuickBooks version.
2. Test MAPI behavior with a simple email action outside QuickBooks.
3. Review whether the Office update changed profile state or default app associations.
4. If the integration remains brittle, document an alternative invoice send workflow.

Technician Notes

Document what changed, what confirmed the fix, and whether the issue points to a broader standards gap worth addressing for the client.