Subscription vs Meta per-message fees
Your Flow plan covers the product (inbox, bots, seats, fair-use API). Meta bills per-message fees (marketing, utility, authentication, and service messages after 1,000 free per number each month) separately on your WhatsApp Business Account.
Plans
Basic is the 1K-contact step for trials and small teams. Pro is the 50K-contact step for larger teams. Custom lets you pick your contact step; every step includes the AI agent, catalog, appointments, and API access, and steps differ in limits, not features. Reseller adds white-label and client workspaces.
Fair use
Bots, webhooks, and API calls share a cap described on your plan. Burst traffic is fine; sustained scraping is not.
Yearly billing
Yearly billing is 50% off and quarterly is 20% off the monthly rate (reseller plans: 20% yearly, 10% quarterly). Final invoices follow your workspace currency.