Dispatch
Rails, templates, numbers and what Meta bills for.
What Meta actually bills for on the WhatsApp Business Platform
Conversations, not messages. What opens one, which category applies, and the three things that surprise people on the first invoice.
Sending to a list without destroying your number
Broadcast lists, campaigns and the arithmetic of block rates. How to send to many people without the send being the last one you make.
Sending images, documents and voice notes that actually arrive
Supported formats and sizes for images, documents, audio and video - and the format that silently fails because WhatsApp treats it as a sticker.
One time codes on WhatsApp: what is allowed, and what breaks
Authentication templates, the rules Meta enforces on them, and why WhatsApp should not be your only delivery channel for a login code.
Why WhatsApp bans a business number, and what actually prevents it
Blocks are driven by what recipients do, not by how many messages you send. What triggers a ban, what warning you get, and how pacing helps.
WhatsApp template messages, and why yours was rejected
What a template is, what the categories cost, the rules that get one rejected, and how to write variables that survive review.
Two ways to send WhatsApp from software, and how to choose
The Cloud API needs verification, a dedicated number and a fee per conversation. The Web protocol needs none of that. What each one costs you.
WhatsApp Business, the app and the API: which one you need
The free app and the Business Platform are different products with different limits. Where the app stops being enough, and what changes.
Articles 15 to 22 of 22. New ones are announced on WhatsApp, or take the feed.