I don't believe there is a limit and as such there is no balance limit to view.
There are performance guidance limits:
If you are administering Adobe Experience Cloud products on the Admin Console, note the following limits for best performance:
- A maximum of 8,000 profiles in an organization.
- A maximum of 4,000 product profiles assigned to a user.
- A maximum of 100,000 users delegated to a product profile.