First steps with the WhatsApp Business API: WABA approval, webhook setup, error codes, and EU data residency.

A WhatsApp Business Account (WABA) is the Meta-owned object that gives you programmatic access to the WhatsApp Business Platform. Without an approved WABA, you cannot send a single message through the API. Approval is not one decision. It is four separate reviews: The WABA approval process is really those four reviews stacked together, each with…

For years, choosing a WhatsApp provider was mostly a messaging decision. In 2026, it has turned into a data-protection one. Legal, procurement, and security teams across Europe are asking harder questions about where customer conversations are processed and stored, and who can reach that data. For banks, insurers, hospitals, public bodies, and SaaS platforms handling…

Your template got rejected, Meta didn’t give a clear reason, and your campaign is sitting idle. The cause is rarely random. It’s usually one of four or five repeating patterns that show up across nearly every account dealing with rejections at scale. Once you can spot which pattern you’re in, the fix is usually straightforward.…
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