Invoice reconciliation

Invoice reconciliation compares what billing APIs reported against what you were charged.

Expect small differences. Credits and free tiers apply at billing time, volume discounts land later, tax is added at invoice, timezone boundaries shift usage between days, and recent usage may not have settled when you queried.

Treat the API figure as the operational number — what you use to spot a problem — and the invoice as the accounting number. A percent or two of drift is normal.