Which of the following is a disadvantage associated with database marketing?

The correct answer highlights a significant challenge in database marketing: the need for constant updating requirements. Database marketing relies heavily on data to effectively target and reach consumers. This data needs to be accurate, current, and relevant, which means marketers must continually invest time and resources to update their databases. As consumer preferences, behaviors, and information change over time, businesses must ensure they are working with fresh data to maintain the effectiveness of their campaigns. This process can be labor-intensive and costly, and failing to keep data updated can lead to poor targeting and decreased campaign effectiveness.

In contrast, ease of implementation, limited analytics, and high customer loyalty do not accurately reflect the common disadvantages faced in database marketing. While limited analytics can certainly be a concern, advancements in technology and tools for data analysis have mitigated this issue. Similarly, high customer loyalty is usually a desirable outcome of effective database marketing strategies. Therefore, the need for constant updates stands out as a clear disadvantage.