Unscrupulous affiliates can squat on domain names with misspellings and get a commission for the redirect. They can populate online registration forms with fake or stolen information, and they can purchase AdWords on search terms the company already ranks high on, and so on. Even if the terms and conditions are clear, an affiliate marketing program requires that someone monitor affiliates and enforce rules.

In November 1994, CDNow launched its BuyWeb program. CDNow had the idea that music-oriented websites could review or list albums on their pages that their visitors might be interested in purchasing. These websites could also offer a link that would take visitors directly to CDNow to purchase the albums. The idea for remote purchasing originally arose from conversations with music label Geffen Records in the fall of 1994. The management at Geffen wanted to sell its artists' CD's directly from its website but did not want to implement this capability itself. Geffen asked CDNow if it could design a program where CDNow would handle the order fulfillment. Geffen realized that CDNow could link directly from the artist on its website to Geffen's website, bypassing the CDNow home page and going directly to an artist's music page.[13]

After setting the goals marketing strategy or marketing plan should be developed. The marketing strategy plan provides an outline of the specific actions to be taken over time to achieve the objectives. Plans can be extended to cover many years, with sub-plans for each year. Plans usually involve monitoring, to assess progress, and prepare for contingencies if problems arise. Simultaneous such as customer lifetime value models can be used to help marketers conduct "what-if" analyses to forecast what potential scenarios arising from possible actions, and to gauge how specific actions might affect such variables as the revenue-per-customer and the churn rate.
Two-tier programs exist in the minority of affiliate programs; most are simply one-tier. Referral programs beyond two-tier resemble multi-level marketing (MLM) or network marketing but are different: Multi-level marketing (MLM) or network marketing associations tend to have more complex commission requirements/qualifications than standard affiliate programs.[citation needed]
Pixels track everyone who comes to your site, and you can build custom audiences around them. For example, if you post content about how to learn to drive a semi-truck, and you track visitors with pixels, you can then market truck driving certification to people who have already shown an interest in that already because they visited that specific page. And your conversions will skyrocket.
According to Porter, these strategies are mutually exclusive and the firm must select one approach to the exclusion of all others.[70] Firms that try to be all things to all people can present a confused market position which ultimately leads to below average returns. Any ambiguity about the firm's approach is a recipe for "strategic mediocrity" and any firm that tries to pursue two approaches simultaneously is said to be "stuck in the middle" and destined for failure.[71]
In corporate law and taxes, an affiliate is a company that is related to another company, usually by being in the position of a member or a subordinate role, a subsidiary. According to​ Investopedia, a subsidiary is a company "whose parent is a majority shareholder." (That means the parent owns 51 percent or more of the other company's shares of stock.