Not sure if this is the right area to post. We implemented an express checkout via form submit with PayPay quite a few years ago now with an additional IPN piece. It was working back then. Getting back around to testing it out again. I get the following error upon posting the form with a resulting URL of https://www.sandbox.paypal.com/webapps/shoppingcart/error?flowlogging_id=2ecf02955789b&code=AMOUNT_ERROR Things don't appear to be working at the moment. Please try again later. The forms coding: <form id="PAYPAL" name="PAYPAL" method="POST" action="https://www.sandbox.paypal.com/cgi-bin/webscr" class="form-paypal"> <input alt="cmd" type="hidden" name="cmd" value="_xclick"> <input alt="upload" type="hidden" name="upload" value="1"> <input alt="no_shipping" type="hidden" name="no_shipping" value="1"> <input alt="rm" type="hidden" name="rm" value="2"> <input alt="business" type="hidden" name="business" value="my_acct_email"> <input alt="item_name" type="hidden" name="item_name" value="Invoice #017808"> <input alt="amount" type="hidden" name="amount" value="$100.00"> <input alt="invoice" type="hidden" name="invoice" value="123"> <input alt="custom" type="hidden" name="custom" value="789"> <input alt="currency" type="hidden" name="currency" value="USD"> <input alt="notify_url" type="hidden" name="notify_url" value="PayPal/"> <input alt="return" type="hidden" name="return" value="my_return_url"> <input alt="cancel_return" type="hidden" name="cancel_return" value="my_cancel_url"> <button class="btn-paypal" name="" type="submit" aria-label="Checkout with PayPal"> </button> </form> When it worked it would pop up a paypal modal over top. Allow you to pay by paypal or credit card. Then go to the "return" url provided. Thank you
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