Why 'Unknown' Must Be a Payment State, Not Just a Handled Error

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A technical analysis highlights a critical flaw in how payment systems handle HTTP timeouts: writing 'failed' to a database after a timeout is inaccurate, because the payment provider may have already processed the charge. When a request times out, there are three indistinguishable outcomes — the request never arrived, it arrived and succeeded, or it arrived and the response was lost — making any definitive status claim unreliable. The recommended fix is to treat 'unknown' as a distinct, durable state in the payment status enum rather than collapsing ambiguous outcomes into a binary success-or-failure model. The article also distinguishes between 'confirmed' (provider acknowledgement via API) and 'settled' (verified via bank statement), arguing that stopping at confirmed substitutes a promise for actual evidence. Properly encoding these states in the database schema is presented as essential for accurate reconciliation and preventing duplicate charges or erroneous refunds.

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