How can I permit my Timesheet Staff to record expenses?

First you will need to create a new role by cloning the existing TimesheetStaff role, and provide permission to record expenses for associated project(s). To create this role:

• Go to Settings by clicking the Gear icon in the top right corner.
• Select Roles under Users & Roles in the Organization Settings pane.
• Click Clone next to TimesheetStaff to duplicate this existing role.
• You will be navigated to the New Role creation form. Uncheck the Prevent timesheet staff(s) from recording expenses for associated project(s) option under Timesheets.
• Click Save.

Assign this newly created role to your users and they will be able to record expenses for associated project(s).