Who is flying where, which trips need a decision, and which rules are being tested. Set the policy once and stop policing it.
Spend by department, cost centre, and traveller, with invoices and receipts already attached to the trip they belong to.
Fares that already fit the rules, a few taps to book, the itinerary in your pocket, and a human on the line when plans move.

A live view of who is where, pre-departure briefings on visas and risk, and alerts the moment a route is disrupted. When something happens at an airport, you already know who it affects.
Per department, per grade, per route. Applied at search, at booking, and at approval, so the compliant choice is also the easy one.