What scope is required for a custom dimension reporting membership status in Google Analytics?

The correct answer is based on the nature of the data you want to track and analyze with Google Analytics. When reporting on membership status, it's important to understand that this information is typically related to the user as a whole rather than just their interaction during a single session or a specific event.

Using a user scope means that the membership status will be associated with individual users across multiple sessions and events. This allows you to see how different segments of users (such as members versus non-members) engage with your website over time. By applying user scope to the custom dimension, you can track a user’s status persistently, which is particularly useful for understanding behavior and patterns related to membership.

In contrast, session, event, and product scopes are more limited in their tracking capabilities. Session scope would only apply to the interactions that happen during a single visit, event scope would track only specific interactions, and product scope would focus on particular products, none of which would provide a comprehensive view of a user's membership status across their entire engagement with your site. Therefore, user scope is the most appropriate choice for capturing membership status in a way that is meaningful for long-term behavior analysis.