`contact_center_number` not enable sms feature

API and Webhooks Contact Center
1

I am unable to send myself a test SMS message via the API. Here’s an example of a request/response:

REQUEST:
POST https://api.zoom.us/v2/contact_center/sms

{
  "contact_center_number":"1438xxxxxxx", <-- this is my main Zoom phone number
  "consumer_numbers":["1438xxxxxxx"], <-- this is my personal mobile phone number
  "body":"This is a test message from ZoomNet"
}

REPONSE:
HTTP/1.1 400 Bad Request
Date: Thu, 25 Sep 2025 15:39:33 GMT
x-zm-trackingid: WEB_c2a1c1cc71897bd47d7a7d05846ef855

{
  "code":1405,
  "message":"`contact_center_number` not enable sms feature"
}

Here’s what I have done:

  • I created a 10DLC brand which was approved. When I look under Admin > Number Management > SMS Campaigns > My Brand, I see my brand and its status is Active.

  • I create a SMS campaign and submitted it for approval. I received notification earlier today that it had been approved. When I look under Admin > Number Management > SMS Campaigns > SMS Campaigns, I see my campaign and its status is Active.

  • My main phone number was assigned to this SMS campaign as you can see below:

    image
    image667×445 12.4 KB

  • I turned on the SMS feature under Account Management > Account Settings as you can see below:

    image
    image1013×670 39 KB

There must be some other setting that I need to enable but I can’t figure out what it is.

2

@rehema.zoom @justin.steinberg , is there anything else @desautelsj is missing?

4

Hi @desautelsj ,

Do you have a queue set up for SMS messaging? Required steps are shown in this article. After review, if you’ve seen that you’ve done all these steps and are still seeing issue, please reach back out.

5

@rehema.zoom Yes I do have a queue configured for messaging and I added myself as an agent in this queue.

Thank you for forwarding this document. However, it talks about sending a SMS via the UI which is not exactly what I am attempting to do. I’m trying to send SMS via the API: Contact Center APIs

6

@rehema.zoom I can also confirm that messaging is active on one of my numbers as you can see here:

image
image1227×201 14 KB

7

@rehema.zoom I don’t know if the following is an important detail or not, but I find it quite odd: when I look at Contact Center Management –> Preferences → General Settingsand I click on Assign number under Set a default phone number for SMS in messaging queues with outbound enabled, the list of phone numbers available for me to select is completely empty.

I would have expected the number with “Messaging is active” (which I show in a previous screenshot) to be listed. But maybe I’m wrong about this?