Hi, we would like to use Shopify as a store front and inventory management system, but because we demand complex and custom checkout process which Shopify doesn't support and because of existing contracts with our existing processor, we would like to forward user during checkout process to our own checkout solution. Essentially, standard checkout has Step 1 and Step 2 where we would like to substitute Step 2 with something custom hosted on our end. That would require forwarding user either after Step 1 or even on clicking the Checkout buttom to the custom location with a minimum amount of parameters (Shopify's order id or something similar) so that we can complete transaction there.
Do you have any suggestions on how to do that? Redirect API or something else?
Many thanks,
Bruno