Some advertisers offer multi-tier programs that distribute commission into a hierarchical referral network of sign-ups and sub-partners. In practical terms, publisher "A" signs up to the program with an advertiser and gets rewarded for the agreed activity conducted by a referred visitor. If publisher "A" attracts publishers "B" and "C" to sign up for the same program using his sign-up code, all future activities performed by publishers "B" and "C" will result in additional commission (at a lower rate) for publisher "A".
Earning income via Target affiliates, however, requires a bit of work. Cookies expire in just seven days, and commissions can be as low as just one percent, so you’ll need to be operating a high-traffic website in order to make serious cash with this program. But with Target’s much-beloved brand reputation and vast catalog, relevant product links can be a big earner for established influencers.