Expense Limits and Validation

Summary

Confirmed validation protects basic value and lifecycle integrity; no financial policy ceilings are implemented.

Claimants, operations, and QA.

Area	Confirmed validation
Tenant/claimant	Tenant and at least one claimant identity are required
Amount	Must be greater than zero
Currency	Normalized three-character code; current creation uses the domain default
Category	Normalized free form with a maximum length
Rejection	Pending only; non-blank reason required
Approval/Paid	Pending-only approval; Approved-only Paid transition
Receipt	File name and non-empty decodable content required

Maximum amount, category budgets, receipt thresholds, date windows, duplicate detection, and currency conversion are Not implemented.