Client said he paid for our service. $240. He sent me a copy of the PayPal receipt transaction he received so I have the transaction number. The PayPal Checkout (javascript) with Smart Payment Buttons create order problem Ask Question Asked 7 years, 3 months ago Modified 4 years, 1 month ago A unilateral payment is a payment that is made to a receiver who does not have a PayPal account. Unilateral payments can be used with simple or parallel payments that are implicit or preapproved. Unilateral payments are not designed to be used with chained payments or payments that require manual approval through the web flow. PayPal Error: 13122 This transaction cannot be completed because it violates the PayPal User Agreement. Ask Question Asked 13 years, 3 months ago Modified 4 years, 10 months ago You can set up auto-return in your PayPal account, which will take customers to a receipt page. For example, use the following URL and replace YourDomain with your own URL: Paypal subscription webhook for recurring payment Ask Question Asked 6 years, 4 months ago Modified 5 years, 5 months ago Billing fields are used for payment processing by PayPal, as they are for communication with credit card companies for example, to better check against fraud and ensure the payment attempt is authentic. They are not returned to you or included as part of the transaction that you see. You can't remove them. Note that with PayPal billing information is kept private within the PayPal account by. If you are using PayPal Payments Advanced with Magento, you should be using your PayPal Manager credentials, and not your API Credentials. This could be the reason you are getting Security Banner Header not valid 10002. This domain is registered and protected by Markmonitor More than half the Fortune 100 trust Markmonitor to protect their brands online. A customer could use multiple Paypal accounts, or could make some purchases as a guest using a different funding source than their primary Paypal account, and merchants would get different payer_id s for each one – even if the person's name, address, and all other identifying information were exact matches.