Using serial numbers after check in or through Dispatch?

I'm designing my companies EPDM rollout and I'm having difficulty with serial numbers. They work great for setting variables when adding things to the vault but it doesn't look like I can use serial numbers at any other time in the Workflow for that file (either during a workflow state change or with Dispatch). Am I missing something? Is there another way to get a new number from a list elsewhere during workflow or dispatch?

Thanks!

James

SolidworksSolidworks Pdm enterprise Pdm