Implementation Question - How do you assess and charge Use tax?

Summary:

Material that is purchased for service goes into inventory and therefore does not include use tax at the time of procurement. When field work orders include debrief lines for material which came from inventory, our client must calculate and pay use tax.

1. How do you assess Use tax based on your service customer's work site?
2. How do you charge Use tax from your service customer?
3. Do you use Vertex or any other system to calculate Use tax?
4. Did you build any custom integration from Service Logistics to Vertex or any other system?

We are looking for a solution to calculate Use Tax after the Service Request is complete