PayPal return URL

Question

Here's the code for my Paypal button:

<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post">
    <input type="hidden" name="cmd" value="_xclick">
    <input type="hidden" name="business" value="[email protected]">
    <input type="hidden" name="lc" value="GB">
    <input type="hidden" name="button_subtype" value="products">
    <input type="hidden" name="no_note" value="1">
    <input type="hidden" name="no_shipping" value="1">
    <input type="hidden" name="rm" value="0">
    <input type="hidden" name="return" value="http://www.example.com">
    <input type="hidden" name="item_name" value="My Item">
    <input type="hidden" name="amount" value="25.00">
    <input type="hidden" name="currency_code" value="GBP">
    <input type="hidden" name="bn" value="PP-BuyNowBF:proceed_btn.gif:NonHosted">
    <input type="hidden" name="item_number" value="4BD9569402CDE">
    <input type="image" src="http://www.example.com/image.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online.">
    <img alt="" border="0" src="https://www.paypal.com/en_GB/i/scr/pixel.gif" width="1" height="1">
</form>

Is it possible to add the item_number to the return URL?

For example, after completing the payment within PayPal the user gets sent back to http://www.example.com?item_number=4BD9569402CDE

Answer 1

I remember reading in their docs that you can add a new hidden field with any custom value, that will be posted back to you.

You could use that field for whatever you want - I don't recall from memory how it was called, though, sorry, but if you have the docs at hand you'll find it pretty easily.