Eligibility determines whether or not a customer receives promotional campaigns from your brand.

Bluecore supports the following eligibility statuses:

Eligibility status	Promotional/batch campaign	Trigger campaign	Transactional campaign
Opt in	Yes	Yes	Yes
Known	No	Yes*	Yes
Unsubscribed	No	No	Yes

* Known customers can receive trigger campaigns if this is enabled in the account-level settings.

Single and double opt-in

Mobile campaigns offer you to choose whether a customer uses Single opt-in or Double opt-in.

To learn more about single and double opt in, see Mobile eligibility overview.