WhatsApp Channel Management and Blocking Resistance Guide

Blocking of your WhatsApp number is influenced by several factors, including signs of automation (lack of delay between messages), user complaints, your response ratio (messages sent/received), and the nature of your mailing campaigns.

To maintain the stability and longevity of your WhatsApp phone number, pay close attention to the following parameters:

• Number age (and proper warm-up)

• Response ratio (incoming vs. outgoing messages)

• The inclusion of a STOP command option

• Addressing the recipient by name

• Posing a question in the first message

• Message length (favoring shorter messages)

• Adding contacts to your list

General Recommendations

• We recommend sending out messages to no more than 200 customers per day due to stricter regulations from WhatsApp.

• We also recommend distributing large mailing bases across multiple phone numbers.
  
  

1. Number Age (Number Warm-up)

The longer a number is registered in WhatsApp, the more resistant it is to blocking. A brand new number is highly vulnerable and must be warmed up for at least 10 days. The warm-up process should begin the day after you create the WhatsApp account.

Number Warm-up Sequence:

1. 24-Hour Break: To reduce the risk of being banned, take a 24-hour break between registering a new WhatsApp account on your phone and scanning the QR code in the WhatsApp web client or in your Callsavvy Personal Account.

2. Days 2 to 4 (Incoming): The number receives incoming messages from other accounts, 1 message every 2 hours.

3. Day 4 (Outbound Start): The number starts writing back, also 1 message every 2 hours (to numbers that are in your contacts).

4. Over 7 Days: Gradually increase the flow of messages from 12 to 100 per day.

5. After 10 Days: The number is much more resistant to bans.

6. Full Resistance: According to observations, WhatsApp gives numbers the "green light" after 25–30 days if there is no suspicious activity (otherwise, it may disable linked devices).

Important! If the number is blocked, its warm-up is reset, and the process must be started from the beginning.

2. Response Ratio (Incoming and Outgoing Messages Ratio)

If you send many messages but receive no replies, you risk a ban. The ideal situation is clients writing to you first.

• Aim for at least 50% of clients to respond to your messages. A high response rate signals to WhatsApp that the communication is welcome and not spam.
  
  

3. STOP Command

While a recipient can always block your number, providing an easy opt-out mechanism is crucial.

• Add the phrase "Type stop to unsubscribe from further messages" at the end of your mailing.

• This action significantly reduces the likelihood of complaints filed directly via WhatsApp, helps filter your audience, and positively impacts your response rate, allowing you to keep your number working.
  
  

4. Address by Name

Personalization is a key defense against blocking.

• Addressing the client by name increases the likelihood of a response and makes the message feel more personal.

• Personalization also makes each message unique, which improves the stability of the number from being blocked. Callsavvy already offers tools to personalize each message using our WhatsApp campaign tool.
  
  

5. Question in the First Message

Explicitly ask for permission to communicate in the very first message.

• Ensure the client enters a dialogue with your number/bot by writing a message in response. This achieves a good response rate and helps filter out clients with a negative attitude.

• Example: "John, good afternoon! Do you want to receive an electronic receipt from the enterprise 'My Company'? Answer: Yes/receipt"
  
  

6. Short Messages

Simulate real, human conversation.

• Instead of sending one large message, send several smaller messages sequentially.

• This style resembles real communication more closely than an automated newsletter.

7. Adding to Contacts

The risk of blocking is significantly reduced if you send messages only to those clients who have already added your number to their contact list.

Scenarios by Degree of Risk to be Blocked