Opt-in (consent to messages)
Opt-in is a person's explicit consent to receive messages from a company in a chosen channel: mailings, reminders, offers.
What it is
The person says it themselves: “yes, write to me”. For example, they tick a box in an application form, press a button in a chat or answer “yes” to a question about sending reminders. That is opt-in.
Sometimes double opt-in is used. The person left a number and then confirmed it with a reply message. This way the company makes sure the number is real and belongs to that person.
How it looks in practice
Good consent is specific: which channel, what the messages will be about, how to unsubscribe. A line saying “I agree to everything” in small print at the end of a contract is weak consent, both legally and in the client’s eyes.
It is worth storing the consent: when, where and in what form it was received. If a dispute or complaint arises, this record is the answer.
Why it matters
Messengers are stricter about messages people did not expect. A recipient without consent presses “report”, and the number loses reputation. In many countries advertising without consent also breaks the law. Rules depend on the country and the type of message, so the way consent is collected is best agreed with a lawyer.
The typical mistake
Buying a ready-made number list and assuming consent existed “somewhere”. A purchased list has no opt-in from you. It is cold contact with all its risks: complaints, blocks, claims.
More in Signals
- Are messenger broadcasts legal: the consent that saves the number and the companyA messenger broadcast is legal where the recipient has consented to such messages and the platform's rules and the country's advertising and personal-data law are respected. Consent isn't a checkbox for its own sake — it's a trail: when, to what, and how a person agreed. Without it, numbers are lost to complaints fastest, and the company answers, not the platform.
- Hiring through Telegram and WhatsApp: how to run candidates in chat and not lose themTo run candidates in Telegram and WhatsApp without losing them, answer fast, mark out the funnel and keep the history with the company rather than in a recruiter's phone. A first message, short screening, a specific invitation and reminders cover the path. Mailings to a candidate list should be relevant, varied and paced. A good candidate is gone within days if your team is slow.