Recover overdue invoices without chasing every customer yourself.
Keep your invoices in a Google Sheet and WiloSync emails a polite reminder to everyone who is overdue and still unpaid — on demand or on a schedule, and only after you preview who gets contacted.
Available on any paid plan — from $39/month. View plans
Preview exactly who would be emailed before anything sends. Mark a row Paid and that customer is skipped. Pause anytime.
Before
Overdue invoices get chased one at a time, whenever someone remembers — so some slip through and the cash sits there unpaid.
After
WiloSync reads your invoice sheet, finds who is overdue and unpaid, and — once you approve the list — emails each a polite reminder from your Gmail.
What you get
Preview before anything sends
Every run shows exactly which overdue customers would be emailed, so you can check the list before a single reminder goes out.
Paid invoices are skipped
Set a row’s status to Paid in your sheet and that customer is left alone automatically — no reminder for something already settled.
Consistent, polite follow-up
The same friendly reminder goes out on your schedule, so chasing money stops depending on you remembering.
How it works
- 1
Keep your invoices in a Google Sheet (client, email, amount, due date, status).
- 2
Each run finds rows that are past due and not marked Paid.
- 3
Preview who would be emailed, then send — or set a schedule.
- 4
Each customer gets a polite reminder from your Gmail.
What your customer receives
Subject: A friendly reminder about invoice INV-1001
Hi Acme Co, This is a quick reminder that invoice INV-1001 for $1,200.00 was due on May 15 and is still showing as unpaid. If you have already sent payment, please ignore this note. Thank you, Riverside Contracting
What you control
- The invoice Google Sheet (your source of truth for who owes what)
- The Status column — set Paid when settled so reminders stop
- When reminders run — Run Now or a Schedule
- The company name signed in the reminder emails
What you need
- A Google account (Sheets + Gmail) — connect once under Integrations
- A Google Sheet of invoices with a Status column
- Your company name set in Settings
About 5 minutes — no technical skills needed
Included in this workflow
- Reads your invoice Google Sheet live on every run
- Finds overdue, unpaid rows automatically
- Preview exactly who would be emailed before sending
- Run on demand or on a schedule
- Reminders sent from your own Gmail
- Paid rows are skipped so nobody is chased twice
This is a premium workflow — it is not on the free plan. It reads invoices from a Google Sheet you maintain (already run your books in QuickBooks Online? Use the QuickBooks version instead, which needs no spreadsheet).
Available as a custom build
- Escalating sequences — a gentle first notice, firmer second, and final notice
- A “Pay now” link in the email so customers can settle in one click
- SMS reminders in addition to email
- A summary to you of who was chased and how much is outstanding
- Multi-currency formatting and your own branding on every reminder
Questions
Do I need a spreadsheet?+
Yes — this version reads invoices from a Google Sheet you keep. If you run invoicing in QuickBooks Online, the QuickBooks version does the same thing without a spreadsheet.
Will it email customers without my approval?+
On a manual run you preview the full list first and nothing sends until you send it. On a schedule it emails everyone who is overdue and unpaid at run time.
How do I stop reminders for someone who paid?+
Set their row’s Status to Paid in the sheet. Paid rows are skipped on the next run.
Can I change the wording?+
The workflow uses a professional default reminder. Fully custom wording, branding, and escalation are available as a custom build.
Will this workflow stay updated?+
Yes. It runs as a shared workflow — reliability and default wording improve automatically, and your sheet is read fresh on every run.
Ready to put this premium workflow to work?
Creating your WiloSync account is free. This is a premium workflow — subscribe to activate it and connect your tools, or request a custom setup and we’ll set it up for you.
Available on any paid plan — from $39/month. View plans
Update policy & sample files
How updates work
WiloSync runs this as a shared workflow. When we improve reliability, fix bugs, or refine default email wording, those improvements roll out automatically — you never need to delete and recreate your automation. Your sheet URL and schedule stay yours. Reminder email wording and overdue detection may improve over time; your sheet is read fresh on every run.
Sample sheet
Columns: Client Name, Email, Invoice Number, Amount, Due Date, Status