workforce-pay-bill-p/PRD.md

Planning Guide

A cloud-based workforce back-office platform that centralizes timesheet management, billing, payroll, compliance, and analytics for recruitment and staffing organizations, enabling efficient end-to-end workflow automation with real-time visibility and control.

Experience Qualities:

1. Professional - Enterprise-grade interface that conveys reliability, security, and operational sophistication appropriate for financial and HR workflows
2. Efficient - Dense information architecture with quick-access navigation, bulk actions, and keyboard shortcuts that minimize clicks for high-frequency tasks
3. Transparent - Clear visibility into workflow status, approval chains, and data lineage with comprehensive audit trails and real-time updates

Complexity Level: Complex Application (advanced functionality, likely with multiple views) This is a multi-module enterprise platform requiring navigation between distinct functional areas (timesheets, billing, payroll, compliance), role-based access control, real-time dashboards, complex form workflows, extensive data visualization capabilities, and Redux-powered state management for scalable, predictable application state.

Essential Features

Authentication & Login

• Functionality: Salesforce-style login screen with email/password authentication
• Purpose: Secure access to the platform with professional enterprise-grade authentication
• Trigger: User navigates to application without authenticated session
• Progression: Enter credentials → Validate → Show loading state → Redirect to dashboard
• Success criteria: Smooth authentication flow, password visibility toggle, remember me option, secure session management

Dashboard Overview

• Functionality: Displays real-time KPIs, alerts, and quick actions across all modules
• Purpose: Provides at-a-glance operational health and reduces time to critical actions
• Trigger: Successful user login or navigation to home
• Progression: Login → Dashboard loads with widgets → User scans metrics → Clicks widget to drill down → Navigates to relevant module
• Success criteria: All KPIs update in real-time, widgets are interactive, no data older than 5 minutes

Timesheet Management

• Functionality: Multi-channel timesheet capture, approval routing, and adjustment workflows
• Purpose: Centralizes time data from multiple sources with automated validation and approval
• Trigger: Worker submission, admin creation, or batch import
• Progression: Timesheet entry → Validation against contract rules → Routing to approver → Approval/rejection → Integration to billing/payroll
• Success criteria: All submission methods work, approval routing follows configured rules, adjustments create audit trail

Billing & Invoicing

• Functionality: Automated invoice generation, matching, delivery, and payment tracking
• Purpose: Eliminates manual invoice creation and ensures billing accuracy from approved timesheets
• Trigger: Timesheet approval or manual invoice creation
• Progression: Approved timesheet → Invoice generation → Client review → Delivery → Payment tracking → Reconciliation
• Success criteria: Invoices auto-generate within 1 hour, support multiple currencies, track payment status

Payroll Processing

• Functionality: One-click payroll runs supporting multiple employment models
• Purpose: Automates complex payroll calculations across PAYE, CIS, and contractor payments
• Trigger: Pay period close or manual initiation
• Progression: Select pay period → Review timesheets → Calculate deductions → Generate payment files → Submit to bank → Issue payslips
• Success criteria: Supports all employment types, calculates correctly, generates compliant reports

Compliance Monitoring

• Functionality: Document tracking, expiry alerts, and automated compliance enforcement
• Purpose: Reduces risk by ensuring all workers maintain required documentation
• Trigger: Document upload, expiry date reached, or onboarding initiation
• Progression: Document request → Worker upload → Verification → Expiry monitoring → Alert before expiry → Block engagement if expired
• Success criteria: All documents tracked, alerts sent 30 days before expiry, workers blocked if non-compliant

Reporting & Analytics

• Functionality: Pre-built and custom reports with drill-down capabilities, real-time margin analysis, and predictive forecasting
• Purpose: Provides visibility into margins, forecasts, and operational metrics with AI-powered insights
• Trigger: User navigates to reports or scheduled report generation
• Progression: Select report type → Apply filters → Generate → Review visualizations → Drill down → Export data
• Success criteria: Reports load under 5 seconds, support export to Excel/PDF, reflect real-time data, forecasts show confidence levels

Multi-Currency Management

• Functionality: Comprehensive currency rate management with automatic conversion and tracking
• Purpose: Enables global operations with support for multiple currencies and real-time exchange rates
• Trigger: User adds currency or updates exchange rates
• Progression: Navigate to currency → View rates → Add new currency → Update rates → Apply to invoices
• Success criteria: Exchange rates update in real-time, conversions are accurate, supports unlimited currencies

Multi-Tenant Navigation

• Functionality: Switch between organizational entities and divisions
• Purpose: Enables agency groups to manage multiple brands/divisions in single platform
• Trigger: User selects entity switcher
• Progression: Click entity selector → Choose entity → Context switches → Data filters to selected entity
• Success criteria: Clear indication of active entity, data properly segregated, no cross-contamination

Collapsible Navigation Groups

• Functionality: Organized, collapsible navigation menu with grouped module sections
• Purpose: Manages growing menu complexity by organizing related modules into expandable/collapsible groups
• Trigger: User clicks group header to expand/collapse
• Progression: Navigate to sidebar → Click group header → Group expands/collapses → Access module within group
• Success criteria: Groups persist state, smooth animations, essential modules always visible

One-Click Payroll Processing

• Functionality: Automated payroll processing from approved timesheets with instant calculation and payment file generation
• Purpose: Eliminates manual payroll calculations and reduces processing time from hours to seconds
• Trigger: User clicks "Process Payroll Now" button
• Progression: View approved timesheets → Review worker payments → Confirm processing → Generate payment files → Mark timesheets as processed → Download payment files
• Success criteria: Processes 100+ workers in under 5 seconds, calculates all deductions correctly, generates bank-compatible files

Rate Template Management

• Functionality: Pre-configured rate structures for different roles, clients, and shift types (standard, overtime, weekend, night, holiday)
• Purpose: Ensures consistent rate application and automates shift premium calculations across all timesheets
• Trigger: User creates new rate template or applies template to timesheet
• Progression: Define role/client → Set standard rate → Configure premium multipliers → Save template → Apply to timesheets → Automatic rate calculation
• Success criteria: Unlimited templates supported, automatic application to matching timesheets, version history maintained

Custom Report Builder

• Functionality: Flexible report configuration with custom metrics, grouping, filtering, and date ranges across all data types
• Purpose: Empowers users to create ad-hoc analysis without requiring technical support or pre-built reports
• Trigger: User navigates to Custom Reports and configures parameters
• Progression: Select data type → Choose metrics → Apply filters → Set grouping → Define date range → Generate report → Export to CSV/PDF
• Success criteria: Supports 10+ data dimensions, generates reports under 3 seconds, exports to multiple formats

Holiday Pay Management

• Functionality: Automatic holiday accrual calculation, request workflows, and balance tracking with statutory compliance
• Purpose: Automates complex holiday pay calculations and ensures workers receive correct entitlements
• Trigger: Hours worked recorded in timesheet (automatic accrual) or worker submits holiday request
• Progression: Hours worked → Accrual calculated at 5.6% → Balance updated → Worker requests holiday → Manager approves → Balance deducted → Holiday pay included in next payroll
• Success criteria: Automatic accrual from all timesheets, real-time balance visibility, integration with payroll system

Advanced Search & Query Language

• Functionality: Powerful query language parser with filter builder UI for all list views (timesheets, invoices, expenses, compliance)
• Purpose: Enables power users to rapidly filter and sort large datasets using natural query syntax while providing visual builder for less technical users
• Trigger: User types in search bar or opens filter builder
• Progression: Enter query (e.g., "status = pending hours > 40") → Parse and validate → Apply filters → Display results count → Show active filter badges → Clear/modify filters
• Success criteria: Supports text (contains/equals/starts/ends), numeric (>/</=/>=/<=/), list (in), and sorting operators; sub-second query parsing; persistent filter state; guided help documentation; exports include active filters
• Query Examples:
  • Timesheets: status = pending workerName : Smith hours > 40 sort amount desc
  • Invoices: amount > 5000 currency = GBP status in sent,overdue
  • Expenses: category = Travel billable = true status = pending
  • Compliance: status = expiring daysUntilExpiry < 30 documentType : DBS

Edge Case Handling

• Missing Timesheet Data: Display clear empty states with guided actions to submit or import timesheets
• Approval Conflicts: Show resolution wizard when multiple approvers provide conflicting inputs
• Currency Conversion Failures: Fall back to manual rate entry with prominent warning indicator
• Offline Submission: Queue submissions for sync when connectivity restored with visual feedback
• Duplicate Detection: Flag potential duplicates with side-by-side comparison and merge option
• Expired Documents: Block critical actions with modal explaining requirement and upload path
• Payment Failures: Retry logic with exponential backoff and admin notification after 3 attempts
• Rate Calculation Errors: Highlight affected rows and provide inline correction interface

Design Direction

The design should evoke trust, precision, and control—essential for handling sensitive financial and HR data. It should feel like a sophisticated financial platform: organized, systematic, and information-rich without overwhelming users. The interface should prioritize data density and scanning efficiency while maintaining clear visual hierarchy for critical alerts and actions.

Color Selection

An enterprise financial platform with professional authority and clear status communication.

• Primary Color: Deep Navy Blue (oklch(0.28 0.05 250)) - Conveys trust, stability, and corporate professionalism appropriate for financial applications

• Secondary Colors:

  • Light Slate (oklch(0.95 0.01 250)) - Subtle backgrounds for cards and panels maintaining visual separation
  • Medium Gray (oklch(0.55 0.01 250)) - Secondary text and borders for information hierarchy

• Accent Color: Vibrant Cyan (oklch(0.65 0.15 210)) - Energetic highlight for CTAs, active states, and interactive elements

• Status Colors:

  • Success Green (oklch(0.65 0.15 145)) - Approved timesheets, successful payments
  • Warning Amber (oklch(0.75 0.15 85)) - Pending approvals, approaching deadlines
  • Error Red (oklch(0.58 0.20 25)) - Rejections, overdue items, compliance failures
  • Info Blue (oklch(0.60 0.12 230)) - Informational alerts, help tooltips

• Foreground/Background Pairings:

  • Primary Navy (oklch(0.28 0.05 250)): White text (oklch(1 0 0)) - Ratio 11.2:1 ✓
  • Accent Cyan (oklch(0.65 0.15 210)): White text (oklch(1 0 0)) - Ratio 4.6:1 ✓
  • Light Slate (oklch(0.95 0.01 250)): Dark Navy text (oklch(0.25 0.04 250)) - Ratio 13.8:1 ✓
  • Success Green (oklch(0.65 0.15 145)): White text (oklch(1 0 0)) - Ratio 4.8:1 ✓
  • Warning Amber (oklch(0.75 0.15 85)): Dark text (oklch(0.25 0.02 85)) - Ratio 10.5:1 ✓

Font Selection

Typography should project precision and clarity appropriate for data-heavy financial interfaces, with excellent readability at small sizes for dense tables and forms while maintaining personality beyond standard corporate defaults.

• Primary Font: IBM Plex Sans - Technical precision with warmth, excellent at small sizes for tables and forms

• Monospace Font: IBM Plex Mono - For monetary values, IDs, and reference numbers requiring alignment

• Typographic Hierarchy:

  • H1 (Page Titles): IBM Plex Sans SemiBold / 32px / -0.5px letter-spacing / 1.2 line-height
  • H2 (Section Headers): IBM Plex Sans SemiBold / 24px / -0.3px letter-spacing / 1.3 line-height
  • H3 (Card Headers): IBM Plex Sans Medium / 18px / 0 letter-spacing / 1.4 line-height
  • Body (Primary): IBM Plex Sans Regular / 14px / 0 letter-spacing / 1.5 line-height
  • Body Small (Tables): IBM Plex Sans Regular / 13px / 0 letter-spacing / 1.4 line-height
  • Labels: IBM Plex Sans Medium / 12px / 0.3px letter-spacing / 1.3 line-height
  • Data Values: IBM Plex Mono Regular / 13px / 0 letter-spacing / 1.4 line-height

Animations

Animations should reinforce the feeling of a responsive, well-engineered system while never impeding workflow speed for power users performing high-frequency operations.

• Micro-interactions: Subtle scale (0.98) and opacity (0.9) on button press (100ms) to provide tactile feedback
• Panel Transitions: Smooth slide-in from right for detail panels (300ms ease-out) maintaining spatial model
• Status Changes: Color transition with gentle pulse (200ms) when timesheet moves from pending to approved
• Data Loading: Skeleton screens with shimmer effect rather than spinners to maintain layout stability
• Notifications: Toast slides in from top-right with bounce (400ms spring physics)
• Navigation: Fade-swap between major views (250ms) with stagger on list items (50ms per item)
• Hover States: Instant background color change (0ms) with border accent fade-in (150ms)

Component Selection

• Components:

  • Sidebar: Persistent left navigation with collapsible module groups and entity switcher
  • Card: Primary container for dashboard widgets and detail sections with subtle shadow
  • Table: Dense data tables for timesheets, invoices, workers with sticky headers and row actions
  • Dialog: Modal forms for creating/editing records with multi-step support
  • Sheet: Slide-in detail panels from right for viewing full records without navigation
  • Tabs: Switch between related views (e.g., pending/approved/rejected timesheets)
  • Badge: Status indicators with color coding (approved/pending/rejected)
  • Button: Primary actions (solid), secondary (outline), destructive (red), icon-only (ghost)
  • Input/Textarea/Select: Form fields with labels-inside for space efficiency
  • Calendar: Date range pickers for filtering reports and selecting pay periods
  • Popover: Contextual actions menu on table rows
  • Alert: Banner notifications for system-wide messages
  • Progress: Visual representation of onboarding completion or document collection
  • Switch: Toggle settings and feature flags
  • Separator: Visual dividers between content sections

• Customizations:

  • Custom data table component with virtual scrolling for 1000+ rows
  • Custom status timeline component showing approval chain progress
  • Custom metric card with sparkline trend visualization
  • Custom currency input with automatic formatting and symbol
  • Custom entity switcher dropdown with search and favorites

• States:

  • Buttons: Default → Hover (accent background) → Active (scale 0.98) → Disabled (opacity 0.5)
  • Inputs: Default (border-input) → Focus (ring-2 ring-accent) → Error (border-destructive) → Success (border-success)
  • Rows: Default → Hover (bg-muted/50) → Selected (bg-accent/10 border-l-4 border-accent)
  • Cards: Default (border subtle) → Hover (shadow-md) → Active (border-accent)

• Icon Selection:

  • Clock: Timesheets module
  • Receipt: Billing/invoicing
  • CurrencyDollar: Payroll
  • ShieldCheck: Compliance
  • ChartBar: Reports/analytics
  • Buildings: Entity switcher
  • CheckCircle: Approved status
  • Clock: Pending status
  • XCircle: Rejected status
  • Plus: Create new record
  • MagnifyingGlass: Search
  • Funnel: Filter
  • Download: Export

• Spacing:

  • Page padding: 6 (24px)
  • Card padding: 4 (16px) mobile / 6 (24px) desktop
  • Section gaps: 6 (24px)
  • Component gaps: 4 (16px)
  • Tight spacing (tables): 2 (8px)
  • Loose spacing (forms): 8 (32px)

• Mobile:

  • Sidebar collapses to bottom navigation bar with 5 primary modules
  • Tables scroll horizontally with sticky first column
  • Cards stack vertically with full width
  • Multi-column layouts collapse to single column
  • Sheet panels become full-screen modals
  • Reduce font sizes by 1px (e.g., 14px → 13px for body)
  • Dashboard widgets become swipeable carousel
  • Bulk actions hidden behind menu on mobile