# {"code":300,"message":"User does not exist: xxxxx@xxxx.com."}

**URL:** <https://devforum.zoom.us/t/code-300-message-user-does-not-exist-xxxxx-xxxx-com/77744>\
**Category:** Chat\
**Created:** [October 21, 2022, 4:08pm UTC](https://devforum.zoom.us/t/code-300-message-user-does-not-exist-xxxxx-xxxx-com/77744 "2022-10-21T16:08:06Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Amrita\_helpdesk](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/amrita_helpdesk/32/42426_2.png) [@Amrita\_helpdesk](https://devforum.zoom.us/u/Amrita_helpdesk)\
**Post date:** [October 21, 2022, 4:08pm UTC](https://devforum.zoom.us/t/code-300-message-user-does-not-exist-xxxxx-xxxx-com/77744/1 "2022-10-21T16:08:06Z")

</div>

I’ve been using: Zoom Chat API \> Send a chat message

This API worked before, but has stopped working since 2022-08-15.  
Now this API throws the error: {“code”:300,“message”:“User does not exist: [xxxxx@xxxx.com](mailto:xxxxx@xxxx.com).”}

I checked [Zoom Chat API](https://marketplace.zoom.us/docs/api-reference/chat/methods/#operation/sendaChatMessage)

It says:  
To send a message to a contact, provide the contact’s email address in the `to_contact` field

I have to provide the “user’s ID” (instead of email address) for “to\_contact” to make it work.  
It doesn’t recognize “email address” now.

---

<div class="post-metadata">

**Author:** ![gianni.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gianni.zoom/32/32523_2.png) [@gianni.zoom](https://devforum.zoom.us/u/gianni.zoom)\
**Post date:** [October 21, 2022, 4:26pm UTC](https://devforum.zoom.us/t/code-300-message-user-does-not-exist-xxxxx-xxxx-com/77744/2 "2022-10-21T16:26:44Z")

</div>

Hi @Amrita_helpdesk thank you for reporting. I’m going to PM to get the following:

- full API request/response with email and user id
- account id from which you are making the request

I will try to reproduce and submit for further investigation to our API team.

---

<div class="post-metadata">

**Author:** ![Amrita\_helpdesk](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/amrita_helpdesk/32/42426_2.png) [@Amrita\_helpdesk](https://devforum.zoom.us/u/Amrita_helpdesk)\
**Post date:** [October 21, 2022, 4:40pm UTC](https://devforum.zoom.us/t/code-300-message-user-does-not-exist-xxxxx-xxxx-com/77744/3 "2022-10-21T16:40:53Z")

</div>

Thanks. Reply in PM.

---

<div class="post-metadata">

**Author:** ![ThomasD](https://avatars.discourse-cdn.com/v4/letter/t/5f8ce5/32.png) [@ThomasD](https://devforum.zoom.us/u/ThomasD)\
**Post date:** [October 27, 2022, 9:42am UTC](https://devforum.zoom.us/t/code-300-message-user-does-not-exist-xxxxx-xxxx-com/77744/4 "2022-10-27T09:42:17Z")

</div>

Hello,

I have exactly the same problem and the same solution on my side.

EDIT : for some users, email address works, i don’t know why.

---

<div class="post-metadata">

**Author:** ![gianni.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gianni.zoom/32/32523_2.png) [@gianni.zoom](https://devforum.zoom.us/u/gianni.zoom)\
**Post date:** [October 27, 2022, 7:15pm UTC](https://devforum.zoom.us/t/code-300-message-user-does-not-exist-xxxxx-xxxx-com/77744/5 "2022-10-27T19:15:32Z")

</div>

Hi @ThomasD ,

I’m going to PM you as well to get the info requested to submit as a possible bug to our service engineering team.

Thanks!