What scope would you apply for a Custom Dimension that collects data for users who log in to your website?

  • User
  • Hit
  • Session
  • Product

The correct answer is:

  • User

Explanation: User-level scope allows you to conveniently group all of a user’s component sessions and hits by a single value. It is ideal for values that don’t change often for a particular use.

Read more here https://support.google.com/analytics/answer/2709828#example-user