--- title: "Send payment reminders" description: "Email customers about unpaid invoices on a schedule you choose, until they pay." url: https://help.invoicefalcon.com/send-payment-reminders/ section: "Emails" last_updated: 2026-10-28 --- # Send payment reminders > Email customers about unpaid invoices on a schedule you choose, until they pay. Use this guide if some customers pay later than at checkout, for example on bank transfer or payment terms, and you want Invoice Falcon to chase unpaid invoices for you. By the end, customers with an unpaid invoice will get a reminder email, with the invoice attached, every few days until the order is paid. ## Before you begin - Automatic payment reminders need the **Pro plan**. - Reminders only start for orders that got an automatic invoice when they came in. Turn on [Send invoices automatically](https://help.invoicefalcon.com/send-invoices-automatically/) first, or **Send me a copy** under **Copies**. - Only orders placed **after** you turn reminders on are included. Orders that are already unpaid don't get reminders. - Reminders only go to orders whose payment status in Shopify is **Payment pending**. Partially paid orders don't get reminders. - Each reminder is worked out from the invoice's due date. An order needs a due date, from Shopify payment terms or from **Due after (days)**. ## What customers will see An email from your store with the invoice attached as a PDF. The default subject is "{{shop_name}} - Reminder for your Invoice {{order_number}}", and the default message says the invoice is past due and asks the customer to ignore it if they've already paid. If you send reminders **before** the due date, change the message so it doesn't say "past due". See [Customize your invoice emails](https://help.invoicefalcon.com/customize-invoice-emails/). A customer gets at most one reminder a day. Reminders stop by themselves once the order is paid, refunded, voided, or cancelled in Shopify. ## Set it up 1. Open your Shopify admin and click **Invoice Falcon** in the left menu. 2. Click **Settings** in the app's menu. The **Emails** tab opens. 3. In the **Payment reminders** section, click **Customize**. The **Payment reminders** editor opens. 4. In the editor's sidebar, under **Sending**, click **Reminder schedule**. 5. Next to **Send payment reminders**, click **Turn on**. 6. Under **Schedule**, fill in: 1. **Due after (days)**: how many days after the order an invoice is due, for example `30`. 2. **Remind every (days)**: the number of days between reminders, for example `5`. 3. **Send**: choose **After the due date**, **Before the due date**, or **Before and after**. 7. Optional: under **Recipients**, enter addresses in **Also send to**, separated by commas, to copy someone such as your accounts team on every reminder. 8. Optional: tick **Only send to these addresses, not the customer** to send reminders only to those addresses. The box appears once **Also send to** has an address. 9. Click **Save** in the bar at the top of the page. If you see "Reminders only start for orders that got an automatic invoice. Turn on automatic invoices first.", automatic invoices are off. Click **Automatic invoices** in the sidebar and turn them on. To change the reminder email, click **Subject and message** in the same editor. ## How the schedule works - **Due date.** If a Shopify order has payment terms, such as Net 30, its due date comes from those terms. Otherwise it is the order date plus **Due after (days)**. Orders already paid when they come in get no due date and no reminders. - **Timing.** Reminders are counted from the due date, not from the last reminder. With **Remind every (days)** set to `5` and **After the due date**, the customer gets a reminder about 5, 10, 15 days after the due date, and so on, until they pay. - **Before the due date.** Reminders count down to the due date instead, about every 5 days before it. **Before and after** does both. - **Changing the schedule.** **Remind every (days)** and **Send** apply to every invoice in the reminder cycle. A new **Due after (days)** applies to new invoices. Existing invoices may keep the due date they already have. When an invoice with reminders gets paid, Invoice Falcon emails you to say it's been paid and that its reminders have stopped. ## Check your setup 1. In the editor, click **Subject and message**, then click **Send test email** under the preview. Check the reminder in your inbox. 2. Place a test order in your store with your own email address and a payment method that leaves it unpaid, such as a manual payment method. 3. Check that the invoice email arrives. Reminders for this order follow the schedule you set. In **Settings** > **Emails**, the **Payment reminders** section shows a summary such as "Every 5 days after the due date (due after 30 days) ยท Sent to the customer". ## Troubleshooting ### An unpaid order never got a reminder Check these in order: 1. The order came in after you turned reminders on, and got an automatic invoice. 2. The order's payment status in Shopify is **Payment pending**. Partially paid orders don't get reminders. 3. The order has a due date, from Shopify payment terms or from **Due after (days)**. 4. Enough days have passed. With **After the due date**, the first reminder goes out about one **Remind every (days)** period after the due date. 5. The order has a customer email address. ### My existing unpaid orders don't get reminders That's expected. Only orders placed after you turned reminders on, with an automatic invoice, are included. For an older order, send the invoice again yourself from its page with **Send** > **Review & send**, and write your reminder in the subject and message. ### I can't turn on Send payment reminders Reminders need the **Pro plan**. Click the lock next to **Send payment reminders** to see upgrade options. See [Invoice Falcon pricing and plans](https://help.invoicefalcon.com/pricing-and-plans/). ### The reminder says past due before the due date The default message is written for reminders after the due date. In the **Payment reminders** editor, click **Subject and message** and change the message. ## FAQ ### Does turning on reminders affect orders I already have? No. Only new orders placed after you turn reminders on are included. Existing unpaid orders don't get reminders. ### Can I send a reminder for one invoice myself? There's no separate reminder button. Open the order's page, click **Send** > **Review & send**, write your reminder in the subject and message, and click **Send invoice**. See [Email an invoice to a customer](https://help.invoicefalcon.com/email-an-invoice/). ### Do reminders stop when the customer pays? Yes. Once the order is paid in Shopify, no more reminders go out for it, and Invoice Falcon emails you to let you know. ### Can my accounts team get the reminders too? Yes. Enter their address in **Also send to**. To send reminders only to them and not the customer, tick **Only send to these addresses, not the customer**. ### Can customers pay straight from the reminder? The reminder includes the invoice PDF, so if your invoice template has the **Pay now link** turned on, customers can pay from the PDF. See [Let customers pay with a Pay now link](https://help.invoicefalcon.com/add-a-pay-now-link/). ## Related guides - [Send invoices automatically](https://help.invoicefalcon.com/send-invoices-automatically/), which reminders need. - [Customize your invoice emails](https://help.invoicefalcon.com/customize-invoice-emails/), to change the reminder text. - [Let customers pay with a Pay now link](https://help.invoicefalcon.com/add-a-pay-now-link/), so customers can pay in one click. - [Troubleshoot invoice emails](https://help.invoicefalcon.com/troubleshoot-invoice-emails/), when an email doesn't arrive.