CB

Upper Cumulative Offline Transaction Amount is the hard ceiling on the same cumulative-offline-spending measure its sibling, the Lower Cumulative Offline Transaction Amount (CA, covered alongside it here), watches more gently: once the card's accumulated offline spending, tracked via the Counters field (C6, covered earlier) and measured against the Offline Balance (9F50, covered earlier), reaches this threshold, M/Chip's own risk logic is expected to force the next transaction online regardless of that specific transaction's individual amount. It completes the same amount-based graduated-response pattern CA begins, mirroring the structural role the core Upper Consecutive Offline Limit (9F23, covered earlier) plays for transaction frequency rather than cumulative amount - two independent dimensions an issuer bounds separately because either one alone can miss a real risk pattern the other catches. Its source citation, like the rest of this cluster, carries a verificar vigencia flag, preserved as the export states it. See Mastercard M/Chip 4 Card Application Specification.