Checkout provides URL parameters to directly add & pre-select products to the cart using parameters.
Take a look at this parameter pattern:
Let's say, we have four products in the Product list on the Checkout Page and we want to add a third product to the cart, then we will use the parameters as:
You can also add multiple products to the cart (when the checkbox option is selected), by separating with a comma, i.e. /aero-default=1,3
Final Output:
This is how you can select a particular product using the Checkout URL parameter.
