Expense Validation Service

BLoC-based validation service that enforces expense type mutual-exclusion rules and business constraints at the application layer. Prevents invalid combinations (e.g., mileage and public transit simultaneously) and validates amounts and distances before submission.

Feature: Travel & Expense Registration

expense-validation-service

• Validate mutual-exclusion constraints between expense type selections
• Validate distance ranges for mileage claims
• Validate currency amounts for toll, parking, and transit expenses
• Return structured validation errors per field