How to Create RCS Sender ID on Twilio

Prerequisites

Before proceeding, ensure the following conditions are met:

• You have an active Twilio account that is enrolled in RCS.
• You have access to the sub-account for which the Sender ID is being created.

Note: RCS Sender IDs require approval from carriers and Google. This carrier/Google onboarding and approval process is outside the scope of this article.

Procedure

Step 1 — Log In to the Correct Sub-Account

1. Navigate to the Twilio Console.
2. Log in to the sub-account for which you want to set up the RCS Sender ID.

Ensure you are operating within the correct sub-account before proceeding, as Sender IDs are account-specific.

Step 2 — Create the RCS Sender ID

1. In the left-hand navigation, go to Develop → RCS → Senders.
2. Click Create RCS Sender and complete the following required fields:
   
   

   Field	Description
   Sender Display Name	The name that will be visible to message recipients
   Description	A brief description of the sender / use case
   Logo Image	Your brand logo (displayed in the messaging thread)
   Banner Image	A banner image for your sender profile
   Accent Color	Brand color used in the RCS message UI

   
   

   Note-
   A) Fill in any additional fields presented by Twilio as part of the registration flow.
   B) Please make sure to also share us that information.

Step 3 — Configure Webhooks

Once the Sender ID is created, navigate to the Configuration tab and set the following URLs:

All webhook methods must be set to POST.

Part 2: Creating a Messaging Service

Step 4 — Create a Messaging Service

1. Go to Develop → Messaging → Services.

   If Messaging is not visible, click Explore Products and add it first.

2. Click Create Messaging Service, enter a name, and select the appropriate option for "Select what you want to use Messaging for".

Step 5 — Configure Messaging Service Webhooks (Step 3 Integration)

Under the Integration step of the setup, configure the following:

Incoming Messages

Delivery Status Callback

Click Save once done.

Part 3: Attaching the RCS Sender ID to the Messaging Service

Step 6 — Add RCS Sender to Sender Pool

1. Open the Messaging Service you just created.
2. Navigate to the Sender Pool tab and click Add Senders.
3. Under Sender Type, select RCS Sender and click Continue.
4. Select your RCS Sender from the list and click Add RCS Senders.

Part 4: Sharing Details with HighLevel for Onboarding

To complete onboarding, share the following information with HighLevel.

How to Find Each Value

• Messaging Service SID — Go to Messaging → Services, open your service, navigate to Properties. The SID starts with MG….
• RCS Sender SID — Go to RCS → Senders, open your Sender. The SID starts with XE….
• RCS Sender ID — Same page as above. The ID starts with rcs:….
• Account SID — Found on your Twilio sub-account dashboard.
• Logo / Banner Image URLs — Go to RCS → Senders → [Your Sender] → Public Details.

Required Information Summary