# Chatbot message blocked by Cloudfare

**URL:** <https://devforum.zoom.us/t/chatbot-message-blocked-by-cloudfare/144345>\
**Category:** API and Webhooks\
**Tags:** api\
**Created:** [June 22, 2026, 9:57am UTC](https://devforum.zoom.us/t/chatbot-message-blocked-by-cloudfare/144345 "2026-06-22T09:57:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Hong\_Xun](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/hong_xun/32/75179_2.png) [@Hong\_Xun](https://devforum.zoom.us/u/Hong_Xun)\
**Post date:** [June 22, 2026, 9:57am UTC](https://devforum.zoom.us/t/chatbot-message-blocked-by-cloudfare/144345/1 "2026-06-22T09:57:57Z")

</div>

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### Format Your New Topic as Follows:

**API Endpoint(s) and/or Zoom API Event(s)**

chatbot app,

**Description**  
When a reply message contains specific content (analysis data on WAF attacks), the message is blocked.

**Error?**  
Client error 403 when sending Zoom message

This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.

Cloudflare Ray ID: a0ea74746c78cf8b

Source IP: 3.101.\*.\*

Security Service: Cloudflare

Time: Approx. 2026-06-20T11:32:47Z

Page Title: Attention Required! | Cloudflare

**How To Reproduce**  
_Steps to reproduce the behavior:_  
_1. Request URL / Headers **(without credentials or sensitive info like emails, uuid, etc.)** / Body_  
_2. Authentication method or app type_  
_3. Any errors_