POS Lite - Create marked as unpaid payment links

Retail & Point of Sale
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Topic summary

Shopify POS Lite user wants to automate emailing a payment link when a sale is marked as unpaid for customers who pay later in the week.

  • Current process: In POS Lite they can only “Mark as unpaid,” then must manually create and send an invoice with a payment link via the Shopify admin.
  • Constraint: POS Pro reportedly supports this, but the €80/month cost isn’t justified for current sales volume. They prefer not to rely on third‑party apps.
  • Attempts: Tried customizing the “send invoice” email template to include a payment link—no success. Researched APIs and Checkout extensions, but that would require hosting and added complexity.
  • Desired workflow: 1) Mark sale as unpaid in POS Lite; 2) Use “Send invoice” from POS; 3) Email automatically includes a payment/checkout link.

Status: Requesting a workaround to generate and insert a payment link via the POS email template in POS Lite. No solution identified; question remains open.

Summarized with AI on December 12. AI used: gpt-5.
1

Hi everyone,

I recently started using Shopify POS Lite.
Some customers prefer to pay later in the week, that’s not a problem. However, I can only click on “Mark as unpaid” in the POS Lite App, after which I manually send an invoice with a payment link via the Shopify admin page.

I would like to have this automated, I know that it is possible with the POS Pro app, but I simply do not have enough sales yet to make 80 euros per month worth it.

I thought it might be possible to adjust the coding of the “sent invoice template” and create a payment link from it. Unfortunately no success…

I have also found applications from the Shopify app store, but I would rather not be dependent on these apps.

Read something about APIs and Checkout cards on the internet, but then I have to host something myself.

So what I would like is the following:

  1. customer pays
  2. i marked the payment as unpaid (right top corner pos lite app)
  3. use the “sent invoice” button to email customer
  4. edit THAT email template to a payment link.

(It’s about the email template in, settings - notifications - customer notifications - Point of Sale - POS and mobile reception.

Any tip is welcome, hopefully there is a workaround for it!