How to create your Twilio account and link a WhatsApp business number?

To ensure a smooth setup for your Programmable SMS, Alphanumeric Sender ID, and WhatsApp Business Messaging, here is your complete step-by-step onboarding guide from start to finish.

Step 1: Open Your Twilio Account & Retrieve Account SID

1. Sign up for an account via the Twilio Registration Page.
2. Complete the initial email and phone verification steps.
3. Access your Twilio Console Dashboard and copy your Account SID (a 34-character string starting with AC).

Step 2: Assign Account Managers & Receive Initial Credits Complete this step immediately after creating your account to ensure your dedicated support and test tokens are active before proceeding with compliance.

1. Send Twilio your SID: Forward your Account SID to the Twilio team, ideally your direct account manager. Upon receipt, they will deposit your initial tokens/credits into your balance so you can begin testing immediately.

Step 3: Submit Regulatory Compliance & Provision Phone Numbers Some telecommunications law requires business identity verification prior to purchasing or porting local numbers.

1. Submit Compliance Docs: Upload your company registration details (e.g., local business license/NIB and identity details of an authorized representative) in the Twilio Regulatory Compliance Console.
   • Approval Timeline: 2 to 5 business days.
2. Obtain a Number:
   • New Number: Go to Phone Numbers > Manage > Buy a number, select your country, e.g. Indonesia (+62), and purchase a number once your regulatory bundle is approved.
   • Porting an Existing Number: Submit a request via the Twilio Porting Portal with a recent billing statement as proof of ownership.
     • Porting Timeline: 2 to 4 weeks depending on the local carrier releasing the number.

Step 4: Register an Alphanumeric Sender ID (SMS Branding) An Alphanumeric Sender ID allows you to send outbound SMS using your custom brand name instead of a standard phone number, significantly improving delivery rates across your countries' networks e.g. Indonesian networks (Telkomsel, Indosat, XL).

1. Submit Registration: In the Twilio Console, go to Messaging > Services (or navigate to Alpha Sender ID registration under Messaging).
2. Provide Details: Submit your preferred brand name (up to 11 alphanumeric characters) along with your company registration documents and a sample message payload.
3. Usage: Once approved, assign the Sender ID to your Messaging Service in Twilio to start sending branded SMS messages.
   • Approval Timeline: 1 to 3 weeks for full carrier registration across all local mobile operators.

Step 5: Set Up Your WhatsApp Business Account

1. Ensure you have an active, business-verified Meta Business Manager account.
2. In the Twilio Console, go to Messaging > Senders > WhatsApp senders and click New WhatsApp Sender.
3. Follow the guided embedded setup flow to connect your Meta Business Account and link your requested phone number.
   • Setup Timeline: 1 to 3 business days for Meta business verification and account linking.

Step 6: Understand WhatsApp Message Categories

• Utility: Business-initiated transactional alerts (e.g., room booking confirmations, payment receipts). Requires pre-approved Meta templates.
• Marketing: Business-initiated promotional offers or announcements. Requires customer opt-in and pre-approved Meta templates.
• Authentication: One-Time Passwords (OTPs) and security verification codes using Meta's standardized security template format.
• Free-Form (Service Conversations): When a guest messages your business first, a 24-hour customer service window opens. You can reply with standard, non-templated text, images, or media without prior template approval during this period.

Important Reminders

• Opt-In Consent: WhatsApp strictly requires explicit consent (opt-in) from recipients prior to sending outbound Marketing, Utility, or Authentication messages.
• Template Approval: Submit all business-initiated WhatsApp templates via the Twilio Console for Meta approval prior to launching your campaigns (approvals usually take under 24 hours).