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A: Venmo has to come later in the checkout in the ‘Options’ page. It appears in the options page because Venmo requires that all the address information be collected by the checkout, before the payment is initiated.
Q: I am seeing the ‘PayPal’ and ‘Pay Later’ stacked in the shopping cart page, why is that?
A: Those buttons appear stacked, because they are a single widget element that is injected into the checkout by PayPal.