The above error occurs when the merchant completes the first step of adding the URL and then either closes or refreshes the browser. This deletes the token which is returned from our API and causes this page to de-sync with the expected values.

The solution is to request that product resets this merchant's setup and then advise the merchant to re-do the entire process through Shopify.

1. Close all Shopify tabs and Console
2. Navigate to 'Settings'
3. Add a payment method under 'supported payment methods'
4. Install the Peach Payments plugin, kindly do not refresh or leave the page until the two steps are created.

*TIP* Supply the merchant with their credentials so that they can easily copy and paste them into the fields.