Cards on file and recurring card charges

Storing a customer’s card without anyone being able to read it, the mandate that says what they agreed to, charging due mandates in a batch, and the card API for websites.

A card number is the one thing in TRANXACT nobody should be able to read on a screen — not a clerk, not an administrator, not ASK. It is decrypted in exactly one place.

Practical · 9 minutes · 6 steps · 5 questions

Walked over Journals (Accounting) — the behaviour is the same on all 1278 screens.

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Practical US sales tax from the ship-to address Where you collect, how an address becomes state, county, city and district taxes, what the state does not tax, exemption certificates, and the jurisdiction-by-jurisdiction detail a return reads. 10 minutes · 5 questionsOpen

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