WhatsApp Business Platform pricing after 1 October 2026: what service messages cost now
Service messages are charged again, with 1,000 free per business number each month. Utility templates, the ad window, the public-sector policy and payments.
Blog: guides to WhatsApp, privacy and customer messaging
We explain Meta's rules, WhatsApp pricing and the developer details from primary sources, with dates. Every fact that changes over time carries a "last checked" date.
Posts
WhatsApp Business app vs WhatsApp Business Platform (API): which one does your team need?
When the free app is enough, and why growing teams move to the API: rules, costs, what happens to your number, the migration steps and a decision table.
How to verify Standard Webhooks signatures in PHP, Node.js and Python
A step-by-step guide to HMAC-SHA256 webhook verification: signed content, raw-body pitfalls, constant-time checks, timestamps, rotation and a test vector.
Official WhatsApp API vs unofficial QR tools: the risks and how to migrate
QR-linked tools conflict with WhatsApp's terms and put your number at risk. The official platform's rules, its real cost and a step-by-step migration plan.
The 24-hour customer service window and WhatsApp message templates, explained
How WhatsApp's 24-hour window works, what the template categories mean, how to write variables, and why templates get rejected, step by step.
Idempotent sends: designing safe retries for a messaging API
Why messaging APIs send duplicates, how Idempotency-Key works, which errors to retry and how, and how to order delivery statuses that arrive out of order.
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