Timezone and currency — config before data, not after

Timezone and currency — config before data, not after

Get these wrong and every report, reconciliation, and dayparting decision is quietly off. They're nearly impossible to fix retroactively. Set them at setup.

Timezone checklist:
— Set the tracker's reporting timezone to match your DECISION timezone (where you read reports and run dayparting), and keep it fixed forever.
— Confirm the traffic source and network use the same — or document the offset. A network reporting in UTC while you're in EST shifts conversions across the midnight boundary.
— Disable any auto-DST shift on the tracker if your sources don't observe DST. A one-hour drift twice a year corrupts cohort comparisons.

Currency checklist:
— Set tracker base currency to your accounting currency (what you actually settle in).
— If offers pay in mixed currencies, lock the conversion rate handling: fixed rate vs live FX. Fixed = predictable books; live = accurate but volatile ROI.
— Confirm cost (spend) and revenue (payout) are in the SAME currency before computing ROI. Mixed currency ROI is a meaningless number.

Do this on day one of any new tracker, source, or network. Document the chosen timezone and currency in your account notes.

Run this before every launch.