Number Mapping User Guide

The Number Mapping feature allows you to associate country-specific sender IDs (either local numbers or alphanumeric sender IDs) with your primary text number. This ensures your international messages are sent using a local, compliant sender ID while still centralizing replies and workflows through your U.S.-based number.

🔍 What is Number Mapping?

When a message is sent from your primary U.S. text number (e.g., +1-212-xxx-xxxx) to a recipient in another country, the system checks if there is a mapped local sender ID for that destination. If a mapping exists, the message is automatically sent using that localized sender ID, improving:

• Deliverability
• Regional compliance
• Brand familiarity

All replies are routed back to your primary number, so your inbox, workflows, and campaigns work seamlessly — no matter where the recipient is located.

🧭 Navigating the Number Mapping Page

1. Search & Filter Panel

• Text Number Dropdown: Select your U.S. primary number to manage mappings.
• Country Filter: Filter by specific country.
• Status Checkbox: Show only active mappings.
• Search Button: Apply selected filters.
• Add New Mapping: Launch the modal to create a new country-specific mapping.

2. Mapping Table Columns

➕ Adding a New Mapping

Clicking “Add New Mapping” opens a modal where you can configure a country-specific sender ID:

Add Mapping Fields

Steps to Add

1. Select your primary number.
2. Choose the country where you want messages delivered.
3. Select an available sender ID.
4. Optionally enter a description.
5. Click Add to save the mapping.

🔄 Shared vs Dedicated Sender IDs

📤 Shared Sender ID

• Used by multiple accounts.
• Ideal for sending outbound SMS and receiving replies.
• Supported in countries like UK, Germany, Australia, and more.
• Replies are routed back to your primary number.

✅ Use When:

• You’re sending notifications or promotional messages.
• You want to consolidate replies under your main U.S. number.
• You do not expect users to initiate contact via keywords.

📩 Dedicated Sender ID

• Exclusively assigned to your account.
• Required when users need to text you first (e.g., Text-to-Join, Text-to-Vote).
• Ensures full control over incoming traffic.

💡 How to Get a Dedicated Number:

1. Go to Manage Text Numbers.
2. Click Add New Dedicated Number.
3. Select the country and complete the provisioning.

🔁 Comparison Table

✅ Best Practices

• Add mappings for countries where you regularly send messages.
• Use Shared IDs for alerts, promotions, and customer replies.
• Use Dedicated IDs for campaigns where the customer initiates the conversation.
• Always verify country-specific sender ID regulations before configuring mappings.