This feature allows to import contacts and send text messages in one single operation. You can deposit your .CSV file on a shared repository on MailUp servers: this file must contain all the required information for sending (e.g. sender, date and time of sending, body of the text message, recipients, and so on).
The .CSV file must be structured in two sections: heading and messages.
Heading
The heading is made of a fixed number of rows: each one has a specific meaning and is preceded by the symbol "#" (number sign).
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