URL Link to lead to checkout page with items pre-loaded

Hi everyone!

I am trying to find out if I can create a URL link to my store's checkout page which has an item pre-loaded.

I will be able to use this link to use a third party pricing table plugin-in, however the "buy" button only accepts a URL link. 

If someone clicks the button on the plugin, this should ideally redirect to my Squarespace checkout with an item I am selling added to cart. I have attached a picture to what this will look like below:

I have found a similar solution for shopify, however I am unsure if this can work with Squarespace:

https://community.shopify.com/c/Shopify-Design/Cart-Use-permalinks-to-pre-load-the-cart/td-p/613702

I look forward to see if anyone has a solution for this!

Thanks, Till

Hi,

First, you can enable Express Checkout.

Next, add 3 Product BLocks (hide title, description, price, except add to cart button) under above table.

Then use jQuery to move "add to cart button" into table.

You can add 3 product blocks + Pricing table first, then we can check & give the code