Use cases BroadNet answer

What is an SMS keyword campaign?

Last reviewed July 22, 20261 min readReviewed by BroadNet engineering

Quick answer

An SMS keyword campaign invites people to text a keyword (like JOIN or SALE) to a short code or number to opt in, get information, or enter a promotion. The inbound keyword triggers an automated response and adds the sender to a consented list. It is a clean, self-service way to collect opt-in and run interactive promotions, and it depends on two-way messaging and a number that can receive replies.

Plain-language definitionVendor-neutralReviewed July 22, 2026

The long answer

Everything worth knowing, nothing that isn't.

§01

How it works

You advertise a keyword and a number; when someone texts the keyword, a webhook routes the inbound message to your system, which sends an automated reply and records the opt-in. See /answers/what-is-two-way-messaging and /answers/what-is-a-messaging-webhook.

§02

Why it's useful

It captures explicit, self-initiated opt-in — the strongest kind — and powers contests, information requests, and list growth without a form. See /answers/sms-opt-in-best-practices.

§03

What you need

A number that can receive inbound messages — typically a short code for high volume, or a long/toll-free number — plus keyword handling and STOP support. See /answers/how-to-get-a-short-code and /answers/what-is-short-code.

BNWritten by the BroadNet engineering team·Operating carrier-grade messaging since 2003, headquartered in Dubai·Editorial standards

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