| Fees | You don't add any additional surcharge or fee for PayPal transactions. | required |
| Customer journey | Selecting the PayPal payment method takes the shopper directly to PayPal, without any deviations or intermediate steps, and then back to your site. | required |
| Payment methods | If you allow payment methods to be stored and/or set as a preference, PayPal can also be stored as a payment method or and/or payment preference. | required |
| Payment methods | For the customer's first payment, no payment method should be preselected by default. For subsequent payments, the customer's previously used payment method may be preselected. | optional |
| Payment methods | When a payment method is selected, any fields specific to other payment methods are hidden (e.g., credit card fields are hidden if a customer selects PayPal). | optional |
| Account | The customer isn't required to log into or create a store/application account. | optional |
| Thank-you page | The buyer should see a "Thank you" page on return to your website after the PayPal checkout process. PayPal details or logos should be presented such that behaviour is in parity with other payment methods. | required |
| Mobile experience | Confirm iFrame is not used. | required |
| Shipping address validation | A customer enters an invalid shipping address. Your own address validation corrects the address, preventing the invalid address from being sent to PayPal. If address data validation isn't performed, then the PayPal failure error is handled. The customer is notified and asked to correct the address. | required |