About sending messages on WhatsApp

WhatsApp uses your phone's cellular connection or Wi-Fi network to send and receive messages and calls to your family and friends. As long as you haven't exceeded your mobile data allowance or you're connected to a free Wi-Fi network, your mobile provider shouldn't charge you for messaging or calling over WhatsApp. If your phone is roaming, data charges might apply.

Related resources:

About data roaming charges

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