How to send a WhatsApp message to someone without saving their number

With the popularization of WhatsApp, it is already quite common to use the app to exchange messages with people we don't know, including companies and contacts for temporary situations. It is possible to send messages in the app to people outside your contact list, without having to add the number to the phone's address book. The post How to send a WhatsApp message to someone without saving their number first appeared on PR Business News Wire.
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