Hello! Currently, I'm converting our old integration to use the REST API v1 with Omnipay. I'm struggling to find the appropriate place to send the value from the ButtonSource field. Should I send it by the PayPal-Partner-Attribution-Id field and pass it in the Headers? The definition of the ButtonSource field can be found here: https://developer.paypal.com/api/nvp-soap/do-express-checkout-payment-nvp/ Thanks.
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Hello, I already posted a question here https://www.paypal-community.com/t5/Managing-Account/Require-Customers-Billing-Address-on-sandbox-account/m-p/3140501 and after that, I found this theme that seems more appropriate. So can anyone help me with that?
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