A manager has more options in the application, an employee sees only their own tasks, and the administrator button remains hidden from everyone else. From a usability perspective, everything looks fine. But the security question begins one layer deeper: what data can these people actually access, and which operations does the data source allow them to perform? A clear user interface and proper permissions should complement each other, not serve as substitutes.
Consider an application for managing internal requests across several branches. An employee opens the dashboard and sees only their team. Managers can approve requests, while other users cannot. During a typical demonstration, the system behaves exactly as expected. However, one important check is still missing: is access also restricted outside that particular screen?
If a user has permission to read or modify a broader set of data in the underlying system, a filter within the application does not change those permissions. Just as a “Staff Only” sign cannot replace a lock, a hidden button does not establish a security boundary. It can make the application easier to navigate, but access must be controlled by the appropriate layer of the solution.
The Interface Should Help. The Data Source Should Enforce the Rules.
In Power Apps, it makes sense to tailor screens to different roles. A procurement specialist does not need to manage reference data, and reception staff do not need access to the maintenance department’s budget. Fewer unnecessary features make the application easier to understand and reduce the potential for mistakes. However, permission design does not end there.
Dataverse uses security roles to determine which data users can access and which operations they can perform. With SharePoint or another data source, the solution must follow that system’s own access control model. Sharing an application therefore cannot be considered sufficient to secure every component it uses.
A practical starting point is to define specific activities. Who can create a record, who can read it, who can modify it, and who can approve it? Can an employee edit someone else’s request? Do the same rules apply across all branches? Only after answering these questions can technical permissions be configured to reflect people’s actual responsibilities.
Automation May Have More Permissions Than the User Who Triggers It
The connection between an application and a flow or another service deserves particular attention. Such a component may use its own connection and have permission to perform operations that ordinary users cannot access directly. This can be entirely appropriate, provided the intention is clear and incoming requests are properly validated.
Consider closing a financial request. It is not enough for the button to be visible only to managers. The service that actually performs the change must have a reliable way to verify that the operation is authorized. Otherwise, convenient automation could become a way to bypass the data source’s security rules.
Role changes must be handled with equal care. An employee moves to another department, takes on new responsibilities, or leaves the company. The access control model must also account for revoking permissions. Without this capability, security remains a snapshot of the organizational structure as it existed when the application was created.
A Good Test Should Also Result in Access Being Denied
When testing security, it is not enough to verify that an administrator can access everything. We also need standard user accounts and scenarios in which the system correctly denies access to another person’s record or rejects an unauthorized modification. In this case, a failed operation is the expected result, not a defect that needs to be fixed.
The solution should also provide traceability for important changes. Who approved a request, who modified its content, and under which identity was an automated operation executed? This visibility helps with support and investigating discrepancies. However, it does not replace access controls; it supplements them with essential context.
For a business, the goal is a straightforward system in which people have exactly the capabilities they need. Users do not need to understand its security architecture. But that architecture must continue to work even when their actions do not follow the expected path through the interface. At Evenaut, we therefore treat access control design as an integral part of the requirements, alongside forms, integrations, and user experience.
Want to review access permissions in your business application? Contact us at customers@evenaut.com.
