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Developers

4 articles.

Webhooks and API screen in the seeded demo workspace: an Outgoing webhooks card explaining that a signed JSON payload is posted to your endpoint whenever a subscribed event happens, an API tokens card with a token name field and a Generate token button, and a list of available REST endpoints beside their HTTP verbs.

Developers

WhatsApp Flows Error 132068 and 132069: Blocked or Throttled

132068 and 132069 are endpoint health, not policy. The four alert thresholds Meta publishes, what throttled really costs, and why there is nothing to appeal.

16 min read

Outgoing webhook endpoint rows listing a callback URL, subscribed event names, a status column and delivery counts, with a control to reveal the signing secret

Developers

Your WhatsApp Webhook Is Verified and Still Receives Nothing

Verification passing only proves the app is configured. Each WhatsApp Business Account needs its own subscribed_apps subscription, checked by GET, not the dashboard.

16 min read

Outgoing webhook endpoint rows listing a callback URL, subscribed event types, delivery status and counts, with a control to reveal or rotate the signing secret for that endpoint.

Developers

Why Meta Says Your WhatsApp Callback URL Couldn't Be Validated

Four framework-agnostic reasons Meta's WhatsApp webhook handshake fails: JSON instead of plain text, a token mismatch, a GET-only route, or a dead endpoint.

16 min read

Outgoing webhook endpoint rows listing a callback URL, subscribed event types, delivery status and counts, with buttons to reveal and rotate the signing secret

Developers

Why Your WhatsApp X-Hub-Signature-256 Never Matches

Meta hashes an escaped-unicode rendering of the payload, not the parsed object, so most X-Hub-Signature-256 verification code fails silently on real payloads.

15 min read

Other topics

Concepts Errors Pricing Policy Templates Verification Troubleshooting Messaging windows India compliance Team inbox Account limits Consent Coexistence

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