What is Bulk WhatsApp Sender?
A bulk WhatsApp sender is software that delivers one message to hundreds or thousands of contacts automatically, instead of a person forwarding it number by number. Good tools personalise each message with the customer's name, attach images or PDFs, schedule the send for a fixed time, and space messages out with delays so the sending number behaves like a human rather than a machine.
Indian retailers use bulk senders for Diwali offers, EMI due reminders and stock-arrival alerts. The important distinction is between unofficial senders, which use a normal WhatsApp number and risk a ban if used carelessly, and official API-based sending, which is ban-safe but charges per conversation. A typical unofficial campaign to 1,000 numbers costs almost nothing, which is why anti-ban delays matter so much.