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WhatsApp Broadcasts

WhatsApp broadcast details
For WhatsApp broadcasts, make sure the flow you sending begins with an "HSM message" step. This is necessary to open a WhatsApp Dialog session with each recipient.
To create WhatsApp broadcast to the manual phone list - copy phone numbers and paste it to the text field.
That is, one number per line, only numbers without spaces, characters "+" or other characters.
For example:
Preferably no more than 10,000 numbers per one broadcast.