The Blocked Numbers feature lets you prevent messages from being sent to specific phone numbers across SMS, WhatsApp, and Voice. Once a number is added to your blocked list, it is automatically excluded from all future campaigns, helping you avoid sending to invalid numbers, maintain compliance, and protect your sender reputation.
Why Block Phone Numbers? #
1. Avoid Sending to Invalid Numbers #
Block numbers that are:
- Invalid or don’t exist
- Incorrectly formatted
- No longer in service
- Causing delivery failures
This saves credits and improves delivery rates.
2. Respect User Preferences #
Block numbers when users:
- Request to stop receiving messages
- Opt out through official channels
- Report messages as unwanted
- Ask to be removed from your list
3. Protect Your Sender Reputation #
Every failed delivery or complaint can hurt your sender score. Blocking problematic numbers helps maintain a clean delivery record and improves campaign performance.
4. Save Money #
Sending to invalid or blocked numbers wastes credits. Blocking these numbers ensures your budget is spent only on valid, engaged recipients.
Key Features #
Multi-Product Blocking #
Block numbers for:
- SMS Only: Block SMS messages
- WhatsApp Only: Block WhatsApp Business messages
- Voice Only: Block voice calls
- Multiple Products: Block across any combination
- All Products: Block across all channels
Easy Management #
- Add Multiple Numbers: Add many numbers at once (comma or line-separated)
- Search & Filter: Find numbers quickly using search and filters
- Status Control: Enable or disable blocks as needed
- Bulk Operations: Select and manage multiple entries at once
Automatic Protection #
Once a number is blocked:
- No messages are sent to that number
- Protection applies immediately
- Credits are not deducted for blocked messages
- Works across all your campaigns
How It Works #
Simple Process #
- Identify Numbers: Find numbers that should be blocked
- Add to Blocked List: Add numbers with product selection
- Automatic Protection: System prevents messages automatically
- Manage as Needed: Update or remove blocks anytime
Integration with Campaigns #
The feature works with:
- Bulk SMS campaigns
- WhatsApp Business API messages
- Voice call campaigns
- Scheduled campaigns
- API-based messaging
Common Use Cases #
Use Case 1: Invalid Numbers #
Situation: You notice many delivery failures for certain numbers.
Solution: Add these numbers to your blocked list to stop wasting credits.
Use Case 2: User Opt-Out #
Situation: A user requests to stop receiving messages.
Solution: Block their number across all products to respect their request.
Use Case 3: Spam Prevention #
Situation: You want to prevent sending to numbers that previously caused issues.
Solution: Proactively block these numbers to protect your reputation.
Use Case 4: Campaign Cleanup #
Situation: You have a list of numbers that consistently fail.
Solution: Bulk add these numbers to your blocked list to clean up your database.
Benefits Summary #
| Benefit | Description |
|---|---|
| Cost Savings | Don’t waste credits on invalid numbers |
| Better Delivery | Improve overall delivery rates |
| Reputation | Protect and improve sender reputation |
| Compliance | Respect user preferences automatically |
| Efficiency | Easy management with bulk operations |
| Flexibility | Block by product or across all channels |
Getting Started #
To start using Blocked Numbers:
- Access the Feature: Go to Blocked Numbers in your dashboard
- Add Your First Block: Click “Add” and enter a phone number
- Select Products: Choose which products to block
- Save: The number is immediately blocked
What You’ll See #
Your blocked numbers list shows:
- ID: Unique identifier
- Product: Which products are blocked (SMS, WhatsApp, Voice)
- Mobile Number: The blocked phone number
- Timestamp: When the number was blocked
- Status: Active (blocking enabled) or Inactive (temporarily disabled)