Concepts

How the moving parts of TEM work and why - read these before diving into setup or troubleshooting.

Page	What it covers
Expense lifecycle	The full path from draft to reimbursed - who acts at each stage
Approval workflow	How policies, profiles, and approvers combine to route expenses
Employee profiles and policies	How profiles group employees under expense rules
Expense reports	How submitters group expenses and approvers act on them - and why finance posts each element individually
SmartExtract	AI-powered receipt extraction, Classify, Split, and Deferral
Vendor mapping	Attributing employee-expensed spend to vendors for complete spend visibility
Posting and GL	How Posting Groups, Balance Types, and Expense Categories map to journal entries
Reimbursement journals	The two journals that settle the employee liability, and which reimbursement mode uses each
Dimensions	Where dimension values come from when an expense is created, and how they flow into the journal entry
Mileage rates	How transport options, date ranges, and thresholds determine reimbursement
Per diem calculation	How days, destinations, and deductions produce a per diem amount
Company Card flow	How company card transactions are imported, matched, and settled
Multi-Entity Management	How the MEM add-on affects filtering, dimensions, and the reimbursement page - relevant only if your Business Central environment uses Binary Stream MEM

Start with Expense lifecycle - everything else links back to it.