The easiest way is to use a shopping cart already configured to use the PaPal api's... There are quite a few. I use 3D Cart. (www.3dcart.com) Programming your own is possible, but not a lot of fun to get right unless you are pretty knowledgable.
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After I send my customers Invoices to pay with PayPal Pro, and they are paid and closed, I sometimes get requests for receipts weeks later from customers who have lost their receipts. How do I go about printing or sending them a copy of the original receipt?
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How do you get a copy of an invoice sent to a customer once the payment has been made? If I don't print it out, and the customer loses their copy, how do I find a copy of the invoice? This is a BASIC business need...if it hasn't been added, it needs to be.
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