Be sure that your users have access to the right clients. When adding a new customer select user's role in Uku.
All new users are added to Uku as with "User" role. When an invitation to a new user has been sent out, it can be amended to be as "Admin" under "Users" section.

Owner - has created the company's account.
can delete clients and company's account
can invite new users
can choose the role of your users
can deactivate users
can amend the size of the company
can activate time estimation and checklist completion to be mandatory
can add new templates
Admin - sees all of the company’s clients.
cannot delete clients or company's account
can invite new users
can choose the role of your users
can deactivate users
can amend the size of the company
can activate time estimation and checklist completion to be mandatory
can add new templates
User - only sees clients assigned to them.
cannot add new users
can deactivate clients
can add new clients
cannot add new templates
cannot delete or change time tracked by other users
Inactive - user who has been deactivated.
cannot access company's account
history of user's work remains under reports