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Buyer's mobile web browser context to app switch to the PayPal consumer app.
objectreturn_flowstring"AUTO", "MANUAL""AUTO"Merchant preference on how the buyer can navigate back to merchant website post approving the transaction on the PayPal App.
buyer_user_agentstring^.*$User agent from the request originating from the buyer's device. This will be used to identify the buyer's operating system and browser versions. NOTE: Merchants must not alter or modify the buyer's device user agent.