Postman Guide
Go to Postman v1
  • 🥳About Postman v1 (Postman Legacy)
  • Campaign Guide - General
    • 🚀How to send a campaign?
      • ☝️Before You Start
        • Demo Mode
  • Campaign Guide - Email
    • 📧Email Campaigns - Basics
      • How do I send an email campaign?
      • Scheduled Sending
      • Bounced Emails and Halted Campaigns
      • Email Statistics
      • Formatting your Message Template
      • Variable Fields
      • Unique URL Link per Recipient
      • Pasting Content from Microsoft Word
      • Manage your Unsubscriptions
      • Understanding Unsubscriptions
    • 🔐Sending Password-Protected Emails
      • Tutorial
      • Template Editor
  • Campaign Guide - SMS
    • 📲SMS Campaigns - Basics
      • Before Starting Out
      • Summary of Costs
    • 🪜SMS Onboarding Overview
      • Step 1: Sender ID Registration
      • Step 2: Sign up for a Twilio account
      • Step 3: Set up your Twilio account
      • Step 4: Configure Your Twilio Account
        • What if I need to buy a phone number?
      • Step 5: Send a Test Message on Twilio
      • Step 6: Fill in your Twilio credentials in Postman!
        • How do I send a campaign with my saved SMS credentials?
    • 🤔What else do I need to know about sending SMSes?
      • More about Sender ID registration
      • Can I see the send status of my campaign?
      • How can I configure my SMS send rate?
      • Sending an SMS to a Foreign Number
      • SMS Best Practices
      • Useful Twilio Links
  • Campaign Guide - Telegram
    • 🤖Telegram Campaigns - Basics
      • How do I set up Telegram to send my campaigns?
      • Add Telegram Bot Token in Postman
      • Instructions for Recipient Onboarding
      • Use the Bot in the Campaign
      • Telegram Formatting
      • Telegram Bot Statistics
  • Email API Guide
    • 📖Overview
      • IM8 Policies
      • Connecting your Intranet Application
      • API Response Formats
    • 🗝️Email API Key Management
      • Bearer Authentication
      • Generate your email API Key
      • Rotate your email API Key
    • 📨Programmatic Email API
      • Getting Started
      • Comparison with AMR
      • SG-Mail Whitelisting
      • Custom From Address
      • Tracking Email Status
      • Send Email API
        • From Name and From Address
        • CC and BCC
        • Recipient Blacklist
        • Email Tagging and Classification
        • Email Body
          • Embedding Images
            • Linked Images
            • Content-ID Images
        • Attachments
        • Rate Limit
      • Get Email by ID API
      • List Emails API
    • 📨Programmatic GovSG WhatsApp API
      • Getting Started
      • Tracking Message Status
      • Get Available Templates API
      • Send Message API
      • Get Message by ID API
      • List Messages API
    • 🎓Frequently Asked Questions
  • FAQ
    • 📶Service Status
    • For Recipients
      • Check Email Authenticity
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      • Messaging Channel Comparison
      • Cost Breakdown
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On this page
  • The basics
  • What is the difference between Twilio and Postman?
  • Why Twilio?
  • Can I trial using Postman to send SMSes before deciding whether to onboard onto Twilio?

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  1. Campaign Guide - SMS

SMS Campaigns - Basics

Send mass SMSes with Postman! These SMSes are sent through Twilio, our SMS aggregator. We will guide you through setting up an account with Twilio, before you can begin sending SMSes on Postman.

PreviousTutorialNextBefore Starting Out

Last updated 1 year ago

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Update 21 Mar 2024: We have updated our ; new users will now sign up for their own Twilio accounts, more information here.

This portion of the guide is only for existing Postman SMS Users

For agencies looking to onboard Postman's SMS API, this is currently not available.

You may access our new SMS API Docs .

The basics

What is the difference between Twilio and Postman?

Postman is a free multi-channel communications platform built by Open Government Products for all public service agencies. Postman provides a convenient interface for you to craft your message, upload your recipient list, and send your campaign. Using Postman itself is free.

Twilio is a commercial cloud communication service that allows users to send messages (including SMS) through an Application Program Interface (API). Twilio bills users directly for its services; in this case, any SMSes you send using the Postman interface will be billed to you directly by Twilio. Postman does not pay for the SMSes that you send, but neither does Postman charge you for sending SMSes using our interface.

Why Twilio?

We evaluated other cloud-based SMS service providers like Nexmo and AWS SNS before we chose Twilio. We chose Twilio for its simple user interface with an interactive debugger. Its API documentation is also well written, and its API easy to set up. The API also optimises the rate limit to send bulk messages, and allow for users to retry for messages with errors during the first attempted delivery.

Importantly, Twilio API's success rate is 99.999% & uptime is around 99.95% monthly.

Since inception, we have used Twilio for SMS sending services, such as NDP ticketing, Digital MCs, SGH's elective surgery appointment reminders, and quarantine ops by MOH and ICA during Covid-19.

Can I trial using Postman to send SMSes before deciding whether to onboard onto Twilio?

We understand that setting up your Twilio account to obtain the credentials to input in Postman, as well as settling billing processes, may take time. Therefore, we offer all user accounts 3 free demo SMS campaigns per account, at up to 20 free SMSes per campaign, so that you can try out the Postman interface for yourself. No need to set up Twilio credentials at this point. Simply log in with your gov.sg email address and click on Create a demo campaign now. If it's your first time logging into Postman, click Try demo SMS/Telegram.

📲
SMS Onboarding process
here
For new Postman users
Dashboard view for Postman users with existing campaigns