evolution api · AI Automation (A-Z)

evolution api

Hi, I’m having an issue with Evolution API message delivery.

Even though my Evolution API instance looks healthy (webhook URL connected, QR code/session is active, and there are no visible errors), I’m seeing intermittent missing inbound messages. Roughly 8 out of 10 messages are delivered to my webhook successfully, but 2 messages never reach my webhook at all — and they also do not appear in Evolution API logs.

Details:

Webhook is configured and reachable (HTTPS).
QR/session appears connected and stable.
Most messages arrive normally.
The missing messages are not recorded in webhook request logs, nor in Evolution API logs (as if they were never received/forwarded).

Questions:

Has anyone experienced similar “message loss” where some inbound WhatsApp messages don’t hit the webhook and don’t show up in logs?
Are there known causes (rate limits, session reconnects, message type limitations, provider-side delivery issues, etc.)?
What’s the best way to trace/confirm where those missing messages are being dropped?

Any guidance or recommended debugging steps would be appreciated.

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