Wave integration

DueDrop + Wave

DueDrop reads your invoices in Wave and the email thread you already have with each client, then drafts the next follow-up in your voice. You approve it, it sends from your own inbox, and it pauses the moment they reply.

Draft my first follow-up See how DueDrop works
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Your client
Wave → DueDrop draft → your approval → your client
This page covers how the integration works. Looking for better Wave invoice follow-up? →
What connecting unlocks

Three things that change the day you connect Wave.

01

Overdue invoices get a follow-up drafted, not a template sent.

DueDrop watches Wave for invoices that slip past due and drafts the next follow-up from the email thread you already have with that client. If you also want a softer heads-up before the due date, set a separate cadence for that.

02

Client context pulls automatically

Name, amount, invoice number, due date, and the prior email thread — all pulled in before the draft is written, so you approve a finished follow-up instead of filling in blanks.

03

One source of truth — yours

What's in Wave is what DueDrop acts on. The second you mark an invoice paid there, queued follow-ups stop here. And when the client replies, the cadence for that invoice pauses whether the invoice is paid yet or not.

Setup

Three steps. Then DueDrop drafts, you approve.

Connect once. DueDrop watches for invoices that need a nudge and has the draft waiting for you.

STEP 01

Sign in with Wave.

Standard OAuth — you stay on Wave's own authorization screen. We never see your password, and you can revoke access in one click from your Wave account.

accounts.wave.com/authorize
Wave + DueDrop

DueDrop is requesting access to your Wave account

Permissions requested
  • Read-only access to your invoice list and payment status
  • Read customer names, emails, and invoice history
  • No access to accounting, payroll, or receipt data
  • No write access — we never modify invoices or records
STEP 02

DueDrop checks Wave on a schedule.

Wave doesn't push updates the way other accounting tools do, so DueDrop checks in with your Wave account on a regular cadence — usually within a few minutes. Once an invoice ages past due, the draft follow-up is ready for your review. Add a pre-due heads-up cadence too if you want one. For follow-up timing the short delay is a non-issue; we're still reacting hours before a human would.

duedrop · wave · activity review mode · nothing sends unapproved
07:00:03 Polling Wave · 12 invoices · 3 overdue SYNC
07:00:04 Matched to "due in 3 days" rule · INV-3091 UPCOMING
07:00:06 Drafted · waiting for your approval REVIEW
09:14:02 Approved · sent · INV-3091 (heads-up) SENT
11:02:17 Polling · INV-2847 · 14 days overdue SYNC
11:02:18 Matched to overdue rule SPOTTED
11:02:20 Reading prior thread (4 msgs) to match tone CONTEXT
11:02:25 Drafted · waiting for your approval REVIEW
STEP 03

When an invoice goes overdue, DueDrop drafts the follow-up. You approve it.

The draft matches your tone, fills in the client's name and invoice details from Wave, and waits for you. Approve it and it sends from your connected email. Once you trust it for a client, switch that client to auto-send and skip the approval step.

Security & permissions

Minimal access, always in your control.

  • Read-only, always.

    DueDrop never creates, changes, or deletes anything in your Wave account.

  • We never see your password.

    When you click Allow, Wave hands us a limited access token — not your login credentials.

  • Encrypted end to end.

    Bank-grade encryption in transit and in our database.

  • Disconnect whenever.

    One click in your Wave account cuts us off completely. Cancel DueDrop and we delete your data — no lingering copies.

  • Plan support.

    Works with Wave's free plan and Wave Pro. Invoicing is free forever in Wave; so is this integration beyond your DueDrop subscription.

permissions · wave read-only
  • → Read-only access to your invoice list and payment status
  • → Read customer names, emails, and invoice history
  • → No access to accounting, payroll, or receipt data
  • → No write access — we never modify invoices or records
Granted by you on Wave's own consent screen. Revocable any time.
FAQ

About the Wave integration specifically.

How fresh is the data DueDrop sees from Wave?
Because Wave doesn't support webhooks, DueDrop polls your account on a regular cadence rather than listening for real-time events. In practice that means updates — a new invoice, a payment marked received — can take a few minutes to show up in DueDrop versus the near-instant flow we get with other accounting tools. For reminder timing this is a non-issue; we're still reacting hours ahead of when a human would. But we'd rather be upfront about it.
Does DueDrop support Wave Pro features like recurring invoices?
Yes. Any invoice Wave generates — one-off, recurring, estimate-converted — DueDrop reads the same way. If it's in your Wave invoice list, we're watching it.
What about Wave's automatic payment reminders — do I turn those off?
We recommend it, yes. Wave's built-in reminders are template-based and generic; DueDrop's are personal and context-aware. Running both means your clients get double-nudged, which nobody loves. Turn Wave's off in your invoice settings.
Does DueDrop see Wave's payment processing data?
Only what tells us whether an invoice is paid. When a client pays through Wave Payments, Wave marks the invoice as paid, DueDrop sees that status, and queued reminders stop. We never see card numbers or payment details.
Does DueDrop write anything back to Wave?
No. The integration is read-only. We pull invoice status and customer data; we never create, modify, or delete anything in your Wave account.
Can I use DueDrop for multiple Wave businesses?
Yes, but each Wave business needs its own DueDrop workspace. Wave's OAuth tokens are business-scoped, and your DueDrop subscription covers all workspaces you create.
Looking for a general question? See the full FAQ on the main page →

Your next overdue invoice doesn't need another template.

Connect your accounting system and your inbox. DueDrop will draft the first follow-up from the conversation you already have with that client — and nothing sends until you approve it.

Draft my first follow-up
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