Overview
Meta enforces messaging limits on all WhatsApp Business API accounts. Understanding these limits is essential for planning your ChatFlow campaigns and avoiding delivery failures.
For the latest official information, refer to Meta's documentation:
What Are Messaging Limits?
Messaging limits define how many unique users your business can message in a 24-hour rolling period using business-initiated (outbound) messages. Since October 7, 2025, these limits apply to your entire WhatsApp Business Account (portfolio), not individual phone numbers.
Messaging Tiers
Meta assigns your account to one of the following tiers:
Tier 0 (Unverified): 250 unique users per 24 hours
- New accounts without completed Meta Business Verification
Tier 1 (Verified): 1,000 unique users per 24 hours (updated: 2,000 as of Oct 2025)
- After completing Meta Business Verification
Tier 2: 10,000 unique users per 24 hours
- Automatically upgraded after consistent high-quality messaging
Tier 3: 100,000 unique users per 24 hours
- For established, high-volume businesses
Tier 4: Unlimited
- Enterprise-level accounts with proven messaging quality
Note: Limits and tier thresholds may change. Always verify current limits at:
How to Move Up the Tiers
Tier upgrades happen automatically when your account meets these conditions:
- Your phone number quality rating is Medium or High (Yellow or Green)
- You have sent at least 1,000 messages per day over the last 7 days
- Meta reviews upgrades every 6 hours (previously 24-48 hours)
New Phone Numbers and Tier Inheritance
As of October 2025:
- New numbers added to your business portfolio automatically inherit the highest tier of your existing numbers
- You no longer need to manually warm up new numbers from Tier 0
Why Was My Message Not Delivered?
Common reasons for failed delivery:
- Daily messaging limit reached for your current tier
- Phone number quality rating dropped to Low (Red)
- Recipient's account is inactive or does not use WhatsApp
- Sending to a user who has blocked your number
How to Check Your Current Limit
2. Go to WhatsApp Manager
3. Click on Phone Numbers
4. Select your phone number
5. View the Messaging Limit shown in the overview
Tips for ChatFlow Users
- Plan your campaign send times to stay within daily limits
- Spread large campaigns over multiple days if needed
- Maintain a Green (High) quality rating to enable faster tier upgrades
- Monitor your ChatFlow campaign reports to track delivery rates
- Verify your Meta Business Account if you are still on Tier 0
For more information, visit: