A keyword is a word a voter texts to a number to opt in, the classic "text JOIN to 12345 for campaign updates." It's the oldest and simplest way to grow a texting list, and it works because it puts the opt-in action entirely in the voter's hands. Here's what keywords are and how campaigns use them.
How does a text-to-join keyword work?
You pick a short word, JOIN, VOTE, the campaign name, and promote it alongside a number. A voter texts that word to the number, and the platform adds them to your list and sends a confirmation. Because the voter took the action themselves, it's a clean opt-in, exactly the kind of consent that keeps a list deliverable. The keyword is easy to print anywhere, a sign, a mailer, a shirt, a stage backdrop.
What do campaigns use keywords for?
Growing a consented list from anywhere a person might see the campaign. A keyword on a yard sign catches passersby; a keyword called out from a stage catches a whole crowd at once; a keyword on a mailer lets your mail universe opt in. Keywords also route interest, a campaign can run different keywords for different asks, DONATE for giving, VOLUNTEER for shifts, so the opt-in itself tells you what the person wants.
Keyword or QR code?
Both put the opt-in in the voter's hands; they just differ in friction. A QR code is one scan and keeps the voter in the flow, which converts well from a sign or mailer. A keyword works where a scan doesn't, called out loud from a stage, heard on the radio, remembered later. Most campaigns use both, matched to the surface: QR where people can scan, keyword where they can only hear or remember.
Frequently asked questions
What is a keyword in text marketing?
A keyword is a word people text to a number to opt in, like texting JOIN to subscribe. It's the simplest way to grow a consented list, easy to print or say anywhere.
Are keyword opt-ins valid consent?
Yes. When a voter texts the keyword themselves, that self-initiated action plus a logged confirmation is a clean opt-in, the consent you want behind a list.
Should campaigns use keywords or QR codes?
Both. QR codes convert well where people can scan, like signs and mailers. Keywords work where a scan can't, called from a stage or heard on the radio. Most programs use both.
Keep reading: what is an opt-in? and QR codes for voter opt-in. For carrier registration, see The Campaign Registry.