WhatsApp is a powerful channel to communicate with your customers—but only if your line health is in good condition. If users block or report your messages, or if you violate WhatsApp policies, your ability to send messages may be restricted or even eliminated. This guide explains how your line health works, what can damage it, and how to keep it in good condition.

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What is WhatsApp Line Health?

Line health is the reputation score assigned to your WhatsApp Business API number. WhatsApp monitors how users respond to your messages. If many people block or report you, your quality decreases. If they interact with you, your quality remains high.

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Quality Levels in WhatsApp:

  • Green: High quality (good interaction, few complaints)
  • Yellow: Moderate quality (some complaints)
  • Red: Low quality (high complaint rates – risk of penalty)

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Why Line Health Matters

A poor quality line can result in:
  • Lower message limits (for example, from 100,000 to 10,000 messages/day)
  • Temporary restrictions (“With warning” or “Restricted” status)
  • Permanent blocks (you lose access to the channel)
Good health ensures smooth communication and reliable deliverability.

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Common Reasons Why a Line Gets Penalized

  1. High blocking or reporting rates
    Users are annoyed or confused by your messages.
  2. Messages without consent (opt-in)
    You contact people who haven’t agreed to receive your messages.
  3. Low relevance or engagement
    Your messages are ignored or seem like spam.
  4. Policy violations
    You send prohibited content or misuse templates.

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How to check the line health in Meta

Every time you deploy with the line you activated in Treble, you can also check the line health directly from Meta. This helps you monitor quality and make adjustments when necessary. Here I can show you how to check this quality. Having visibility into this will help you take charge of your own campaigns and know what works best for your business. To check the quality you should:
  1. Access business.facebook with your credentials. (remember that this step must be done by someone with admin permissions)
Access business.facebook
  1. Click on the WABA you created with Treble and at the bottom look for “WhatsApp Manager”. Click there too.
Access business.facebook
  1. In this new panel you will find the line or lines you have in your WABA. To check the health, click on the gear icon of the line you want to verify.
Access business.facebook
  1. In the “Insights” section you can find the line quality for the last 30 days.
Access business.facebook This information is very valuable as it is divided into three parts: high, medium and low. Here you can know exactly when the line falls into low quality and analyze what type of campaign you were running that day. This allows you to have control over what you send and improve your future deliveries.

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How to check HSM quality and status within META

  1. Access business.facebook with your credentials. (remember that this step must be done by someone with admin permissions)
  2. To check the quality of the templates, you must click on “Manage Templates”.
Access business.facebook Here you will see all the templates you have created in Treble and you will be able to see their status.
HSM templates should be created directly from Treble
When you make a change to a template in Treble, you should check if that change is approved in Meta.

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7 Ways to Keep Your WhatsApp Line Healthy

1

Diversify Message Types

Combine marketing messages with utility messages (such as order updates or reminders). Useful content builds trust and reduces blocks.
2

Encourage Interaction

Use quick replies, buttons, or questions to motivate user response. If they respond, it improves your line health.
3

Segment Your Audience

Send relevant messages based on behavior, interests, or customer stage. Avoid sending generic content to everyone.
4

Optimize Timing and Frequency

Avoid sending messages at night or every day. Do it during business hours or based on previous interaction patterns.
5

Manage Opt-In and Opt-Out Well

Only send messages to users who gave their consent, and allow them to unsubscribe easily. Not doing so leads to penalties.
6

Use Templates Correctly

Submit templates for approval, don’t change their content afterward, and don’t mix promotional content with transactional.
7

Monitor Your Line and Feedback

Check your WhatsApp Manager dashboard frequently. If quality drops or you receive warnings, act immediately.

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Summary

Do This ✅Avoid This ❌
Send useful and relevant contentSpamming with frequent promotions
Respect opt-in and opt-outSending messages without consent
Constantly monitor your qualityIgnoring red or yellow status warnings
Segment and personalize messagesUsing the same message for everyone
Promote user interactionBroadcasting without expecting responses

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Final Tip

WhatsApp is a privilege, not a guaranteed channel. Take care of your number as a critical asset. When customers trust your messages, you’ll see more engagement—and more results.