SMS Reminders
Last updated: 2026-06-10
On Pro and Team plans, any reminder step can also go out as a text message — useful for clients who live in their phone, or as the extra nudge on a final-notice step.
Turning it on
Three switches control SMS, and all three must be on:
- Per step — in Settings → Reminder schedule, expand a step and tick "Also send as SMS". Steps with SMS on show a small phone icon when collapsed.
- Master switch — in Settings → Notifications, enable SMS notifications for your account.
- Client phone number — the client record needs a phone number in
international format (e.g.
+14155551234). Clients without a phone simply don't get the SMS; the email still goes out as normal.
What the message says
By default Duefy builds a short reminder with the invoice number, amount and a pay link. Messages are capped at 160 characters so they arrive as a single SMS.
Good to know
- SMS goes out alongside the email for that step, never instead of it.
- Every SMS is recorded on the invoice timeline, like emails.
- Standard carrier rates apply on the recipient side; Duefy does not charge per message.