How to update your phone number for the verification process at checkout

If you want to update your phone number for the verification process at checkout. First, you need to opt out from the process by visiting https://pay.shopify.com/ , in the bottom of the page, either enter your email or the number that you wish to replace it with a different number.

Once you're opted out, the next time you get to checkout, just enter a new number as if you're doing it for the first time. Where you enter the number would look like this.