Is this possible?
A form with the options New customer OR Old customer. If new customer, then fill out name, address, phonenumber. If old customer, fill out phonenumber.
When user clicks Next-button the fields will be checked to see if address was OK, or if a previous customer that a user with the phonenumber already exists. Else give the user error message.
Then on the next step make the user choose between two products and click Order-button. This will save the data about the order in the database and send a mail to me.
1) Is this possible? Is there some examples to look at to see how it is done?
2) Do I need Gravity Forms User Registration Add-On?
Thanks