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What does the error message "Gateway authentication failed" mean?
What does the error message "Gateway authentication failed" mean?
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My transaction fails with a network error. How can I troubleshoot this?
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How is the cardholder verification mode of a transaction determined?
How is the cardholder verification mode of a transaction determined?
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A transaction fails with reason "Accessory not whitelisted". What does this mean?
A transaction fails with reason "Accessory not whitelisted". What does this mean?
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How to interpret the status details of a transaction.
How to interpret the status details of a transaction.