If you want to Reach 1000 people on Whatsapp for Whatsapp marketing,
It takes lots of time to Outreach by messaging one by one.
Here you can just Upload a CSV of Contact numbers, and put message and Hit Send.
It need not be just your contacts, it can be anyone.
It had a large demand, where people were not willing to use APIs be it Official Whatsapp APIs or UnOfficial ones like Maytapi
Here you can just paste CSV and Hit send
Mainly used in Cold Whatsapp Outreach