Context - PCA Profiles
Why the shift to using PCA profiles?
Historically, Amazon relied on a single customer account as the primary way to establish identity and personalization across services. Over time, account sharing became a common and expected behavior—especially across entertainment experiences—making it increasingly difficult to understand and serve individual people within a shared account. To deliver more accurate personalization, preferences, and social experiences, Amazon needed to evolve from an account-centric model to a person-centric one, where each individual could be represented distinctly while still living under a shared household account. This shift created the foundation for profiles as the primary unit of identity and personalization.

Amazon Music Family plan usage didn’t match how people actually listened
Within Amazon Music, account sharing was especially prevalent among Family plan customers. While the plan technically supported multiple members by inviting separate Amazon accounts, many households instead shared a single account across devices for convenience. As a result, listening history, recommendations, and playlists were blended across multiple people, leading to degraded personalization and confusion around saved content. This gap between how the product was designed to work and how customers actually behaved highlighted the need for a simpler, person-centric profile model that matched real-world usage.

Licensing restrictions shaped profile availability across tiers
Music licensing agreements limited how many distinct listening profiles we could support per plan, shaping how profiles could scale across Free, Prime, and Unlimited tiers. We evaluated multiple models that expanded profile access, but research and cross-team alignment showed these approaches would risk degrading the Prime experience. We ultimately chose a clearer model that balanced customer expectations and plan value: one profile for Free, Prime, and Individual Unlimited plans, and up to six profiles for Family plans.
