Any message that is successfully created using Twilio's API has a specific ID called the Message Service ID. For text messages, it begins with "SM..." and for media messages, it starts with "MM...".
Your company name or brand is used as the Message Sender ID in one-way SMS messages sent to supported countries as an alphanumeric sender ID. Up to 11 characters may be used in a Message Sender ID.
While using the “Twilio Extension for Zoho CRM”, both Message Sender SID and Message Service ID can be used for sending messages/SMS.
First, you need to register your Message Sender ID through an online form. Also, you need to make sure the Message Sender ID feature is enabled.
To find your Message Sender ID -
The Message Service ID for a specific message can be found by checking your Messaging logs in the Console or by sending an API request to the Messages List Resource.
To find the SID for a particular message in the messaging logs of your project. Log into your Twilio project, choose the "Messaging" product, and go to -
Logs >> Messaging
To view the details page for a particular message, click on the message of interest.
The first item displayed is the message SID:
Source: (https://www.twilio.com/)
For any queries, please email us at help@saasplugin.com.au or visit the Twilio Support Forum.