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1- How can I limit the access of my stock controller from accessing expenses, income for the company?
2- How can I limit the access of my accountant to see the profit and lose?
You can change the access rights of your stock controller to limited by Customers and Vendors if you've added them as a Standard User.
As for your accountant, limiting their access is unavailable. This type of user has access to all areas of the company file just like the Administrator.
For more details about the different types of users, check out this article: Get to Know User Types and Permissions.
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