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arXiv
Papers
Institutions
Authors
Guidelines
Questions
Handbook
Innovation
Events
Handbook
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H
Interaction Patterns and Flows
/
H7
Transactions and Payments
H7.06
Payment Failure
Cards in this group · 3
H7.06.1
Failure reasons must be understandable and actionable
H7.06.2
Retry must not double-charge
H7.06.3
Unknown state needs lookup, not a guess