Square WebPay support thread.

[dbltoe]

This may help. Let us know if it works for you.
https://developer.squareup.com/docs/...ents/apple-pay

[Congerman]

This may help. Let us know if it works for you.
https://developer.squareup.com/docs/...ents/apple-pay

Yup, that is what I looked at. Spoke to Square to see where to put that extra code and they said it would need to be sorted in the Zen Cart plugin

"This is Cris from Square Customer Success.

Regarding your query about integrating Apple Pay with Zen Cart. Although Square integrates with Zen Cart to process payments, all API functions are operated and managed by them directly. For help with Zen Cart specific questions, you’ll need to contact their Support Team."