diff --git a/csharp/App/Backend/DataTypes/Methods/Session.cs b/csharp/App/Backend/DataTypes/Methods/Session.cs
index fc66f90d1..86960dab2 100644
--- a/csharp/App/Backend/DataTypes/Methods/Session.cs
+++ b/csharp/App/Backend/DataTypes/Methods/Session.cs
@@ -110,6 +110,34 @@ public static class SessionMethods
             && Db.Delete(userToDelete);
     }
 
+    
+    public static Boolean GrantUserAccessTo(this Session? session, User? user, Installation? installation)
+    {
+        var sessionUser = session?.User;
+
+        return sessionUser is not null
+            && user is not null
+            && installation is not null
+            && user.IsDescendantOf(sessionUser)
+            && sessionUser.HasAccessTo(installation)
+            && !user.HasAccessTo(installation)
+            && Db.Create(new InstallationAccess { UserId = user.Id, InstallationId = installation.Id });
+        
+    }
+
+    public static Boolean GrantUserAccessTo(this Session? session, User? user, Folder? folder)
+    {
+        var sessionUser = session?.User;
+
+        return sessionUser is not null
+            && user is not null
+            && folder is not null
+            && user.IsDescendantOf(sessionUser)
+            && sessionUser.HasAccessTo(folder)
+            && !user.HasAccessTo(folder)
+            && Db.Create(new FolderAccess { UserId = user.Id, FolderId = folder.Id });
+    }
+    
     public static Boolean Logout(this Session? session)
     {
         return session is not null