Create a client login page on my site where clients can order, and then intergrate that with ZOHO CRM

Create a client login page on my site where clients can order, and then intergrate that with ZOHO CRM



I need to create a page on my site where clients can login to their accounts, order or reorder from a list of products, and pay with paypal. I then need that information to be kept with ZOHO CRM.

Any idea on how to do this?

Thanks, Roman