---
page_type: error
code: 30100
message: "30100: Domain SID is invalid"
level: ERROR
product: Programmable SMS
---

## Description

The Domain SID included in your request is not a valid Domain for your Twilio Organization.

### Possible Causes

The Domain SID you're using could belong to another Organization. It could also potentially be an issue of copy and pasting. You may be providing a URL instead of a Domain SID in the Domain SID field.

### Possible Solutions

Check the Domain SID from your Organization through the Admin Center.