Testing in the sandbox. Making the following calls: 1. SetExpressCheckout 2. GetExpressCheckoutDetails 3. DoExpressCheckoutPayment When calling GetExpressCheckoutDetails, we are constantly receiving the following response: CHECKOUTSTATUS=PaymentActionNotInitiated ACK-Success Most of what I've read states that this indicates that the customer isn't returning to the return URL. That is not the case and has been tested thoroughly. We do have a '?' contained in the return URL to keep from having to create additional pages and am wondering if that might be an issue. Can a returnurl for PayPal Express Checkout contain any characters e.g "?" Example: "https://example.com/payment_page?return&token=EC-7BX27754BT8623257&PayerID=UPGGM5VND8D5Q" as opposed to using "https://example.com/payment_page_return?token=EC-7BX27754BT8623257&PayerID=UPGGM5VND8D5Q"? Thanks, KB
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