Meta Tech ProviderInsights, deep dives,
product updates
Long reads on voice AI, flat-rate economics, Indian-language tooling and what we're building under the hood at Thinnest AI.
WhatsApp Calling for Business: Let Customers Call You, and Let an AI Agent Answer
Your customers are already in your WhatsApp chat. Now they can tap the call button and talk to your AI agent — no phone number to dial, no carrier, no app to install.
WhatsApp Business Calling: Who Can Switch It On, Who Pays, and How It Works
WhatsApp calling isn't open to every number. Here is what Meta requires, who pays for the call, what a business can and can't do, and what the error means when it won't switch on.
WhatsApp's Marketing Messages API: Better Delivery for Broadcasts, Switched On by Default
Meta runs a separate API just for marketing messages, optimised for delivery. ThinnestAI now sends every marketing broadcast through it automatically — same price, nothing to set up, and the old route as a safety net.
WhatsApp Business API Error Codes, Explained in Plain English
131049, 131026, 131053, 131042 — what each WhatsApp error actually means, whose problem it is, and what to do next. A reference for anyone sending on the WhatsApp Business API.
WhatsApp Error 131049: Why Your Marketing Messages Aren't Delivered
"Not delivered to maintain healthy ecosystem engagement." It isn't your account, your template or your provider. It's WhatsApp's limit on marketing messages per person — and resending the next morning makes it worse.
WhatsApp Campaign Says "Sent" but Not "Delivered"? The Real Reasons
Six sent, zero delivered. The account looks fine, the template is approved, the contacts agreed to hear from you. Here are the reasons that actually cause it — and how to tell which one you have.
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