Checking if the number has Whatsapp
How to check if a client's phone is connected to WhatsApp?
We offer three options to check whether phone numbers are registered with WhatsApp:
1. Via API (for developers)
You will need the token of your phone-connected channel. And then the method in our documentation:
In the parameters you need to specify "blocking": "wait" for the request. This allows you to wait for the check result and get a correct response.
And specify the contacts you need in the contacts parameter.
invalid status implies that the number does not have WhatsApp.
Accordingly, you can copy the code snippet and use it in your work. Adding additional pauses and limits to it to reduce the risks of blocking.
2. Via no-code interface
Available here: ๐ Number Checker Tool (CSV upload)
Upload a CSV with numbers
Get 2 result files: one with WhatsApp users, one with non-users
Requires registration and WhatsApp number linked to the API channel
Included in all plans, with 30 free daily checks on trial
Read more here: WhatsApp Number Checker
3. Done-for-you number check (no setup required)
You just send us a file with phone numbers โ we do the rest.
โ No registration or API use required โ Results delivered by email in 1โ3 days (depends on the number of numbers).
Contact our team to find out more and order this service.
Preparing the number for mass checks
We also advise you to warm up the number before mass checking: Warming Up New Phone Numbers for WhatsApp API
Balancing of requests between channels
Mass activity requires the use of multiple channels at once to achieve very fast results. It doesn't matter if you use 2 or 100 channels in your mass mailings or mass number checks. The balancer will allow you to evenly distribute your requests, get results efficiently, and in case of any problems on a channel, report it to you. Blocking a number in this case will not affect your work process.
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