What is a requirement if data sources do not share unique identifiers?

When data sources do not share unique identifiers, it is necessary to create multiple identity profiles to ensure that identities can be accurately represented and managed. Unique identifiers play a crucial role in linking and consolidating identity data across different systems. Without them, there might be a need to segment identities into distinct profiles to maintain clarity and avoid conflicts or duplications.

Multiple identity profiles allow for a better way to handle disparate data sources by enabling the representation of different identities that may correspond to the same individual across varied systems. This way, each profile can capture the specific attributes and roles associated with each data source, thereby facilitating better management, governance, and lifecycle events related to those identities.

In contrast, having a single identity profile could lead to confusion and inaccuracies if multiple sources contain overlapping or contradictory information. The other choices, such as shared lifecycle events and automated onboarding, while beneficial for identity management, do not address the core issue of handling identities that lack unique identifiers.