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# Using PayPal Express Checkout (Operations)

PayPal Express Checkout (commonly referred to as just “PayPal”) is an electronic payment method which requires a Billing Agreement which authorizes a merchant to use a customer’s PayPal account to collect charges (see below). Typically, when initially created, this will require a redirect of the consumer/customer to approve the billing agreement with PayPal, after which the agreement can be used in a similar manner as credit cards (charged variable amounts one or more times on demand). If you already have the Billing Agreement Identifier, you can store and/or use a PayPal payment method in Subscribe without any customer interaction wherever payment methods are used.

See [Creating a new Payment Method](Create_a_Payment_Method)

See [Updating an existing Payment Method](Update_a_payment_method)

See [Fetching a specific Payment Method](Fetch_a_specific_payment_method)

See [Listing all Payment Methods](List_all_payment_methods)

**Parent topic:**[PayPal Express Checkout](../topics/PayPal_Express_Checkout)


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