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American Express payments should be accepted to pay the invoice, however, it will depend on whether you accept this payment method in your selling preferences. You can decide what types of payments you want to accept automatically, deny automatically, or review before you accept in your payment receiving preferences.
For example, you can decide what to do when you receive a payment in a currency you don’t hold or block eCheck payments for all website payments except eBay and Mass Pay.
Here’s how to set your payment receiving preferences: