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Number Warming: A Guide to Protecting Yourself from Blocks#

Number warming is the process of gradually adapting a new WhatsApp account to normal use, simulating the behavior of a real user.

The longer a number has been registered with WhatsApp, the more resistant it is to blocking. New numbers, especially those used for business or mass messaging, are closely monitored by WhatsApp algorithms and are most vulnerable to blocking.

The key goal of warming up is to convince WhatsApp's AI system that your account belongs to a real person and is not a bot or spam tool.

Step-by-step instructions for warming up a number#

Day 1: Registration and initial setup#

  • Register a number in WhatsApp
  • Wait 24 hours before connecting to the instance or web version
  • Complete your profile: set a photo, enter a name
  • Add several contacts from your phone book

Days 2-4: Passive warm-up#

  • Send messages to the number from other accounts

    Ideally, messages should come from different contacts

  • Sending speed: one incoming message every 2 hours
  • Messages should be varied in content (text, voice, media)

Day 4: Starting active communication#

  • Start replying to incoming messages
  • Sending speed: one outgoing message every 2 hours
  • Reply only to numbers that is in your contacts
  • Messages should be natural, not templated

Days 5-10: Gradually increase activity#

  • Slowly increase the number of messages

    By day 7, you can increase the number to 12-100 messages per day

  • Add new contacts
  • Create 1-2 small groups (3-5 people)
  • Make voice and video calls periodically

After 10 days, the number becomes significantly more resistant to bans.
Continue your normal activity and avoid sudden spikes in message volume.

After 25-30 days of no suspicious activity, the number receives the green light from the system. However, remember: if the system detects suspicious activity, it may disconnect linked devices even after this period.

Other things to consider#

  • Don't send the same messages to different people
  • Don't add too many contacts in a short period
  • Vary your sending times
  • Use different types of content (text, photos, videos, documents, voice messages)
  • Don't use numbers for mass messaging without warming them up first
  • Avoid connecting to suspicious apps or services
  • At the first sign of device disconnection, immediately analyze your activity

How do you know if your risk of being blocked is increasing?#

The WhatsApp system rarely blocks accounts instantly without warning. Most often, you'll notice the first "warning" signs:

1. Time limits imposed#

  • Message sending delays: messages are sent with a noticeable delay (from 1 minute to several hours)
  • Limit on group creation: you can't create new groups or receive the message "you've created too many groups recently"
  • Limit on adding to groups: you can't add members to groups

2. Multi-device issues#

  • Linked device disconnection: the instance, web version (Web), or desktop application (Desktop) suddenly disconnects without your intervention
  • Sync errors: messages aren't syncing between your phone and other devices
  • Frequent re-authentication requests: the system constantly asks you to rescan the QR code
  • Unable to connect a new device: an error occurs when trying to connect the web version or another client

According to our observations, WhatsApp monitors activity on linked devices particularly closely. If the system detects suspicious activity (for example, sending duplicate messages through the web interface), it may disconnect these devices, which is often a precursor to a full blocking of the number.

3. Functionality Limitations#

  • Status Blocking: Inability to post or view statuses
  • Call Restrictions: Inability to make voice or video calls
  • Business Directory Issues: For business accounts, hiding or limiting visibility in the directory

What should I do if I see signs of a blocking?#

If you notice any of the following warning signs:

  1. Reduce activity — reduce the number of messages you send
  2. Disable associated devices — if the problems started with the web version or desktop app, disable them for 24-48 hours
  3. Return to basic usage — for 2-3 days use your account only for personal communication with close contacts
  4. Check your contacts - make sure you haven't added suspicious numbers or numbers that are frequently reported as spam
  5. Increase the number of incoming messages - try to have more conversations or messages initiated by your contacts

What to do if you're blocked?#

After being blocked:

  • Warm-up is completely reset
  • After unblocking, you must start the warm-up process from the beginning
  • Be even more cautious in your activity
  • Consider changing your number if you are blocked again

What to do if your number is blocked on WhatsApp?

Conclusion#

By setting aside 10-30 days to warm up your account, you significantly reduce the risk of being blocked and create a stable foundation for communication.

Remember: WhatsApp's algorithms are constantly evolving, so it's important to stay up-to-date with platform policy updates and adapt your compliance strategies. Be patient, act naturally, and your account will serve you well for a long time.

This article is based on observations and analysis of WhatsApp usage practices. Always follow the WhatsApp Terms of Service.