Sending a message to all contacts in WhatsApp I need to send a message to all my contacts (309 phone numbers) via WhatsApp.

Is there a way to send a message for all my contacts, because the application just allows 25 contacts at once?
Use the broadcast function, see: http://www.whatsapp.com/faq/en/android/23130793


Open WhatsApp
Press the [Menu Button]
Tap [New broadcast]
Type your contacts' names or press the [+] button to choose from your contact
list
Tap [Next]
Type your message and optionally attach media
Tap  the send button