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The duplicate transaction error happens because Authorize.Net blocks repeat payment requests within a short time window (default 120 seconds). To fix this you can disable the duplicate transaction check by setting duplicateWindow to 0, add a unique r...

The “duplicate transaction” error happens because Authorize.Net blocks repeat payment requests within a short time window (default 120 seconds).Fix options:Turn off duplicate transaction check → Call Authorize.Net API without the default duplicateWin...