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by charcircuit 849 days ago
PoS devices are usually networked. If you don't validate transactions in realtime you would later validate in batch, but that has more risk than validating at the time of transaction.
1 comments

> If you don't validate transactions in realtime you would later validate in batch

yeah, a lot of orgs just don't enable that (or don't have a process to enable it as required, and have difficulty pushing out a notice to do so if the network is down!).

Also can only do offline credit card transactions. Can't with our Interac (Canadian-only) debit network. Unsure about Visa/Mastercard debit transactions.

> Unsure about Visa/Mastercard debit transactions.

AIUI, the debit card itself enforces online confirmation, even if the transaction goes through the credit card rail.