User Permissions in Erpnext

User Permissions

Limit access for a User to a set of documents using User Permissions Manager

Role Base Permissions define the periphery of document types within which a user with a set of Roles can move around in. However, you can have an even finer control by defining User Permissions for a User. By setting specific documents in User Permissions list, you can limit access for that User to specific documents of a particular DocType, on the condition that "Apply User Permissions" is checked in Role Permissions Manager.

To start with, go to:

Setup > Permissions > User Permissions Manager

User Permissions Manager displaying how users can access only a specific Company.