Author
Esteban Wesson
product lead at Ciarem
Leads product at Ciarem. Writes and reviews the guides on WhatsApp accounts, messaging rules and AI agents, and corrects them whenever Meta changes a name, a price or a limit.
Guides by Esteban Wesson
WhatsApp accounts, names & setup
Meta Business Manager Renamed Business Portfolio in 2024Meta officially renamed Business Manager to Business Portfolio in 2024. Nothing moved: what the portfolio is, how it differs from Business Suite, where WhatsApp lives.
WhatsApp accounts, names & setup
Meta Business Portfolio vs WhatsApp Business AccountMeta Business Portfolio, WhatsApp Business Account, and phone number are not competing options, they are nested layers. Here is each one and where it appears.
WhatsApp accounts, names & setup
What Is a BSP (WhatsApp Business Solution Provider) and Do You Need One?A BSP is a Meta-approved provider that gives you access to the WhatsApp API plus the software to use it. Here is what they do and whether you need one.
WhatsApp accounts, names & setup
What Is a WhatsApp Business Account (WABA)?A WhatsApp Business Account (WABA) is the container that holds your WhatsApp templates, numbers, and limits. Here is what it is and what lives inside it.
WhatsApp accounts, names & setup
WhatsApp Business vs WhatsApp Business API: Which One Do You Need?The clear difference between the WhatsApp Business app and the WhatsApp Business API, who each is for, and how to choose. No technical background needed.
WhatsApp accounts, names & setup
WhatsApp Coexistence: Use the Business App and the API on the Same NumberCoexistence lets you run the WhatsApp Business app and the API on the same number, with chats synced. What it is, who it helps, and how to turn it on.
WhatsApp accounts, names & setup
WhatsApp for Business: The Complete Guide for Small BusinessesA plain-language guide to WhatsApp for business: the app vs the API, accounts and names explained, what it costs, and how to start. No jargon.
WhatsApp messaging mechanics & rules
WhatsApp 24-Hour Window: How It Works and When It ClosesHow the WhatsApp API 24-hour window opens and resets, what is free inside it, the 72-hour Click-to-WhatsApp exception, and how to reach someone after it closes.
WhatsApp messaging mechanics & rules
WhatsApp Business API Pricing: What It Actually CostsThe account is free; you pay per delivered template message by category and country. What is free, what costs money, and how to keep your bill low.
WhatsApp messaging mechanics & rules
WhatsApp Message Templates Explained: Marketing, Utility and AuthenticationWhat WhatsApp message templates are, the three categories (marketing, utility, authentication), why they need approval, and when they cost money.
AI agents & automation
Chatbot vs AI Agent: What Is the Difference?Three things get called a chatbot: a decision-tree bot, an AI that answers, and an AI agent that acts. Here is the real difference, with examples.
AI agents & automation
How to Have a Reliable AI Agent on WhatsAppA reliable WhatsApp AI agent answers from your real information, follows your rules, hands off cleanly, and can be verified. Here is what that takes.
AI agents & automation
How to Test a WhatsApp AI Agent Before You Launch ItTest your WhatsApp AI agent with real customer questions before launch: check correctness, rules, and handoff, fix what fails, and keep testing after.
AI agents & automation
Why AI Agents Make Things Up (and How to Stop Yours)AI models guess when they lack information; that is how a bot invents a price or a policy. Why it happens, and how information, rules, and testing prevent it.
AI agents & automation
Why Steering Your AI Agent Beats Rewriting the PromptRewriting your AI agent's prompt fixes one thing and breaks three. The reliable way to improve it is to adjust specific levers and measure every change.
AI agents & automation
How to Know If Your AI Agent Answers WellAnswering well is not a feeling: it is being correct to your information, following your rules, admitting when it does not know, handing off, and staying in scope. How to check each signal.