Getting Started: Broadcast Messaging (One-to-Many Texting)

Broadcast messaging allows you to send a single message to multiple contacts at once—perfect for sharing educational content, event reminders, health tips, promotions, or general announcements. Subflow makes it easy to personalize and schedule these messages while remaining compliant and efficient.

Overview: What is a Broadcast?

Broadcasts are one-to-many messages that can be sent to targeted segments of your audience. Each broadcast can have one or more message steps, and can be sent immediately or scheduled for the future.

Use broadcasts to:

• Send event reminders

• Share wellness tips, guides, or educational content

• Deliver pre-op/post-op instructions to a group

• Promote new services or programs

• Request feedback or reviews from a segment of patients

Broadcast States

Once a broadcast is created, it will appear in the Broadcasts Table, where you can view its current status:

• Draft – Saved but not yet scheduled or sent

• Scheduled – Set to send at a specific time

• Sent – Successfully dispatched

• Archived – Removed from active view, but still accessible for reporting

Creating a New Broadcast

To get started, navigate to the Broadcasts tab in the Messaging Center and click “New Broadcast” in the top-right corner.

1. Name Your Campaign

Create a name that’s easy to identify internally. A good naming format is:
[Topic or Goal] – [MonthYear]
Example: At-Home Exercises – March2025

2. Select Your Segments

Choose up to three segments to send your broadcast to. Subflow will automatically deduplicate contacts who exist in multiple segments—ensuring each person only receives one message.

3. Compose Your Message

You’ll see a familiar message editor, similar to what’s used in one-to-one Conversations. You can:

• Type your message manually

• Use Templates for consistency

• Add Personalization Tokens with the “Personalize” button or {{ shortcut

• Use the / shortcut or attachment icon to add Forms, Files, Pages, Courses, or Meeting Links

💡 For a detailed breakdown of the message editor, see: Conversations: Getting Started Guide

4. Add Multiple Messages (Optional)

Want to send more than one message in a single broadcast? Click “Add More” to include additional steps. This can be useful for:

• Sending a follow-up shortly after the first message

• Creating spaced educational or onboarding sequences

• Offering next steps (e.g. “Click here to schedule” followed by a link)

Delivery Time Estimate

Subflow will estimate the time it will take to complete your broadcast based on:

• Segment size

• Message length

• Organizational throughput limits

⏱️ Note: This is only an estimate. Actual delivery time may vary due to carrier response times, queue volume, or network delays.

Sending or Scheduling Your Broadcast

Once you’re ready:

• Save your message to enter Draft status

• From the Draft view, click “Send” to deliver immediately

• Or, click the dropdown to Schedule the message for a specific date and time

When you hit Send, Subflow will queue the message and send it in batches based on your throughput rate to maximize deliverability.

Text Message Queues & Throughput Limits

Unlike chat messaging, text messages are queued and sent in batches through carrier networks. This ensures compliance and consistent delivery.

• Default Throughput: 1,200 messages per minute

• Need higher throughput? Contact support@subflow.com

Broadcast Reporting

After your broadcast is sent, Subflow will generate a delivery report, including:

• Total messages sent

• Messages delivered

• Messages failed (with reasons such as opt-outs or invalid numbers)

Use these insights to refine your messaging strategy and improve future campaign performance.