Square POS (in-person + invoices)

Step 1 - Standardize how staff captures the code

Pick one consistent place to enter the ambassador’s discount code during checkout so it’s available to automations.

• Best: apply a Square discount/promo code that matches the ambassador discount code.
• Alternative: store it as an order note / custom field and fetch it via API in your automation.

Attribution depends on the exact discount code value that you post to Refer Labs.

Step 2 - Post completed payments to Refer Labs

When Square confirms payment, call the discount capture endpoint from a trusted automation (Zapier/Make) or your server.

Conversion endpoint

POST https://referlabs.com.au/api/discount-codes/redeem
Headers:
  Content-Type: application/json
  x-pepf-discount-secret: <YOUR_SECRET>
Body:
{
  "discountCode": "CODE_FROM_SQUARE",
  "orderReference": "SQUARE-PAYMENT-ID",
  "amount": "199.00",
  "metadata": { "platform": "square" }
}

Don’t store the secret in client-side Wix/Webflow/etc scripts. Keep it in Zapier/Make or a backend.