Website Payment Preferences 
Auto Return for Website Payments Auto Return for Website Payments brings your buyers back to your website immediately after payment completion. Auto Return applies to PayPal Website Payments, including Buy Now, Donations, Subscriptions, and Shopping Cart.
Auto Return:
On
Off
Return URL: Enter the URL that will be used to redirect your customers upon payment completion. This URL must meet the guidelines detailed below.
Return URL:
Return URL Requirements: The following items are required in order to set up Auto Return.
- Per the user agreement, you must provide verbiage on the page displayed by the Return URL that will help the buyer understand that the payment has been made and that the transaction has been completed.
- You must provide verbiage on the page displayed by the Return URL that explains that payment transaction details will be emailed to the buyer.
- Example: Thank you for your payment. Your transaction has been completed, and a receipt for your purchase has been emailed to you. You may log into your account at to view details of this transaction.
Payment Data Transfer (optional) Payment Data Transfer allows you to receive notification of successful payments as they are made. The use of Payment Data Transfer depends on your and your Return URL. Please note that in order to use Payment Data Transfer, you must turn on Auto Return.
Payment Data Transfer:
On
Off
Encrypted Website Payments Using encryption enhances the security of website payments by decreasing the possibility that a 3rd party could manipulate the data in your button code. If you plan on only using encrypted buttons you can block payments from non-encrypted ones.
Learn more about Encrypted Website Payments
Note: If you enable Encrypted Website Payments, all of your Buy Now, Donations, and Subscriptions buttons must be encrypted via one of the following methods:
- Using the Button Factory with the security settings enabled.
- Using your own code, you encrypt all website payments before sending them to PayPal.
By enabling this feature, any Buy Now, Donation, or Subscription button that is not encrypted will be rejected by PayPal.
Block Non-encrypted Website Payment:
On
Off
PayPal Account Optional When this feature is turned on, your customers will go through an optimized checkout experience. This feature is available for Buy Now, Donations, and Shopping Cart buttons, but not for Subscription buttons. Learn More
PayPal Account Optional:
On
Off
Contact Telephone Number When you activate this option, your customers will be asked to include a Contact Telephone Number with their payment information. Learn More
Note: Selecting On (Required Field) could have a negative effect on buyer conversion.
Contact Telephone
On (Optional Field)
On (Required Field)
Off (PayPal recommends this option)
I found this under Profile -> Website Payment Preferences (in Paypal) Is this what you are talking about... please let me know otherwise where to look for these settings... what URL to enter... should I point to postback.cgi url in "Return URL:"
PAYPAL Post Payment issue?
