My customer says they didn't receive the invoice email

Updated May 19, 2026

Check in this order: (1) Confirm the customer's email address in Truss — a single typo means nothing goes out. (2) Ask the customer to check spam/junk. (3) If using QuickBooks, verify the customer in QBO has a valid email — invoices without a QBO email won't appear in the payment portal. (4) Resend from Truss: Invoices → select invoice → Resend. If still undelivered, contact support.