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[UNPROCESSABLE_ENTITY]: INSTRUMENT_DECLINED: Why?
PayPal Error INSTRUMENT_DECLINED – Main Cause INSTRUMENT_DECLINED is an error code returned by the PayPal API indicating that the customer’s payment method was declined during the transaction attempt. In practice, this means the payer’s funding source (credit card or account) could not be used to complete the payment[12]. PayPal returns this error with a 422 […]
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