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"The merchant interfaces with Global Gateway e4℠ Payment Pages by displaying an HTML form on a website page that submits a POST request to Payment Pages at https://checkout.globalgatewaye4.firstdata.com/payment. Hidden form fields specify the particulars about the payment. The fields supported by Global Gateway e4℠ Payment Pages are described in this section."
I need basic development and integration from http://www.1rgaragedoor.com. There is NO shopping cart software. Customers should simply be able to enter amount and invoice number, before being re-directed to the hosted page.
Detailed information about hosted payment page integration can be found here: