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This object defines a customer in your system. Use it to manage customer profiles, save payment methods and contact details.
objectidstring^[0-9a-zA-Z_-]+$The unique ID for a customer in merchant's or partner's system of records.
merchant_customer_idstring^[0-9a-zA-Z-_.^*$@#]+$Merchants and partners may already have a data-store where their customer information is persisted. Use merchant_customer_id to associate the PayPal-generated customer.id to your representation of a customer.