2. Business Requirements

2.0 Priority Level Definitions

Priority	Definition	Go-Live Impact	Stakeholder Approval	Example
CRITICAL	Core system functionality, data integrity, legal compliance, security	BLOCKING - Cannot go live without this	All stakeholders required	Authentication, GDPR, data isolation
HIGH	Primary business value, significant operational impact	BLOCKING - Should not go live without this	Product Owner + Technical Architect	Batch processing, multi-vendor XML
MEDIUM	Important for operations, workarounds exist temporarily	NON-BLOCKING - Can go live with plan to complete	Product Owner approval	Template management UI, postal integration
LOW	Nice to have, minimal business impact, future optimization	NON-BLOCKING - Defer to Phase 2	Product Owner decision	Advanced filtering, custom dashboards

2.1 BR-001: Multi-Tenant Organization Support

Requirement: The system shall support multiple independent utility companies (organizations) with complete data isolation at the blob storage, processing, and user access levels.

Business Value:

Enables SaaS business model for Nordic utilities market
Reduces per-customer infrastructure costs by 60-70%
Accelerates new customer onboarding (weeks → days)
Increases addressable market across Sweden, Norway, Denmark, Finland

Priority: CRITICAL

Nordic Market Context: Swedish utilities market has ~150 electricity suppliers, ~290 district heating companies. Multi-tenancy is essential for market penetration.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
System supports 50+ concurrent organizations	Load test with 50 organizations uploading batches simultaneously	TC-001	All batches process successfully
Each organization has isolated blob storage	Verify container naming: `{org-id}-invoices-{year}`	TC-002	No cross-org container access
Users cannot access other organizations' data	Attempt API calls to different org-id with valid token	TC-003	All return 403 Forbidden
Each organization configures own branding	Upload logo, colors; verify in rendered PDF	TC-004	Branding applied correctly
Each organization defines delivery channels	Configure email priority; verify email sent first	TC-005	Channel priority honored
Organization data never shared in logs	Review Application Insights logs for data leakage	TC-006	No PII in logs

Dependencies:

Azure Blob Storage with container-per-organization strategy
PostgreSQL schema with user_organization_roles table
Middleware for organization context extraction and validation
Role-based access control implementation

Risks & Mitigation (Nordic Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Data leakage between organizations	LOW	CRITICAL	- Middleware enforces org boundaries - Automated cross-org access testing - Penetration testing by external auditor - GDPR-compliant architecture review	Security Officer
Performance degradation with 50+ tenants	MEDIUM	HIGH	- Blob storage auto-scales - PostgreSQL connection pooling - Indexed queries on organization_id - Load testing with 100 organizations	Technical Architect
Swedish data residency requirements	LOW	HIGH	- West Europe primary region - Data residency enforced in org config - No cross-border data transfer	Compliance

2.2 BR-002: Multi-Vendor XML Format Support

Requirement: The system shall process invoice batch files from multiple vendor billing systems (GASEL/Telinet, XELLENT/Karlskoga, ZYNERGY/EG Software) with automatic format detection and transformation to canonical JSON.

Business Value:

Eliminates integration barrier for new customers (any billing system supported)
Reduces onboarding time by 80% (no custom integration development)
Increases market addressability to all Nordic utilities regardless of billing system
Enables vendor-agnostic downstream processing

Priority: HIGH

Nordic Market Context: Top 3 billing systems in Swedish utilities market: Telinet (EDIEL format), Karlskoga/Xellent (OIOXML), EG Zynergy (proprietary). Supporting these covers ~70% of market.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
System auto-detects GASEL format	Test with 50 GASEL XML samples	TC-010	100% accuracy
System auto-detects XELLENT format	Test with 50 XELLENT XML samples	TC-011	100% accuracy
System auto-detects ZYNERGY format	Test with 50 ZYNERGY XML samples	TC-012	100% accuracy
All formats transform to canonical JSON	Parse each format, verify JSON schema	TC-013	All required fields present
XML validation against vendor XSD	Validate sample files against schemas	TC-014	Schema validation passes
Clear error for unsupported formats	Upload unknown format XML	TC-015	Returns 415 with vendor list
Detection within 1 second	Performance test with 100MB files	TC-016	< 1 second

Dependencies:

Schema registry with field mappings for each vendor
XML parsing library supporting complex namespaces
XSD schema files from vendors (Telinet, Karlskoga, EG)
Canonical JSON schema definition

Risks & Mitigation (Nordic Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Vendor XML schema changes without notice	MEDIUM	HIGH	- Version all schemas (v1.0, v1.1, etc.) - Support multiple versions simultaneously - 3-month deprecation notice in vendor contracts - Automated schema change detection - Direct vendor communication channels	Product Owner
EDIEL standard evolution	MEDIUM	MEDIUM	- Monitor Ediel.org for updates - Participate in Nordic Ediel working groups - Backward compatibility for 2 versions - Phased schema migration	Technical Architect
Complex namespace handling (OIOXML)	LOW	MEDIUM	- Use System.Xml.Linq for namespace support - XmlNamespaceManager for prefixes - Extensive unit testing per vendor - Schema mapping documentation	Dev Team
Incomplete field mappings	MEDIUM	MEDIUM	- Comprehensive mapping validation - Custom fields dictionary for unmapped data - Vendor format validation during onboarding - Optional field graceful degradation	Dev Team
Energiforsk format variations	LOW	LOW	- Document accepted variations - Lenient parsing mode option - Warning system for non-critical deviations	Product Owner

2.3 BR-003: Batch Invoice Processing

Requirement: The system shall process batch invoice files containing up to 100,000 invoices with parallel processing, retry logic, and granular status tracking.

Business Value:

Enables high-volume monthly invoice runs (typical Swedish utility: 50K-200K customers)
Reduces manual processing effort by 95%
Improves time-to-customer (days → hours)
Enables predictable SLA commitments to customers

Priority: HIGH

Nordic Market Context: Monthly invoice cycles concentrated in first/last week of month. Heating season (Oct-Mar) has 40% higher volumes. System must handle seasonal peaks.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Single batch supports 100,000 invoices	Upload 100K batch, verify all processed	TC-020	All invoices processed
Batches processed asynchronously	API returns 202 immediately, processing continues	TC-021	< 500ms API response
Real-time progress tracking	Poll status API during processing	TC-022	Updates every 30 seconds
Failed items don't block batch	Introduce 10 errors in 1000-item batch	TC-023	990 succeed, 10 fail independently
Retry mechanism (3 attempts)	Force temporary failure, verify retries	TC-024	3 retries then poison queue
Processing completes within 2 hours (100K)	Load test with 100K invoice batch	TC-025	<= 120 minutes
Supports XML, JSON, CSV formats (Phase 1: XML only)	Upload each format type	TC-026	XML fully supported

Dependencies:

Azure Storage Queues for message passing
Worker auto-scaling (Container Apps with KEDA)
Blob storage for batch source files and processed invoices
Batch metadata storage with real-time updates

Risks & Mitigation (Nordic Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Processing timeout during heating season peaks (Oct-Mar)	MEDIUM	HIGH	- Pre-warm workers 1st/last week of month - Priority queue for SLA customers - Scheduled off-peak processing windows - Customer communication about peak times	Operations Manager
Memory constraints with large XML files (>50MB)	MEDIUM	MEDIUM	- Stream-based XML parsing (XmlReader) - Chunk processing for large batches - File size monitoring and alerts - 100MB hard limit with split guidance	Technical Architect
Disk space exhaustion on workers	LOW	MEDIUM	- Ephemeral storage cleanup after processing - Blob storage only for persistence - Worker instance monitoring	Operations Manager
Queue message 64KB limit exceeded	MEDIUM	MEDIUM	- Store invoice JSON in blob, queue has reference only - Message payload validation - Compression for large messages	Technical Architect

2.4 BR-004: Template-Based Invoice Rendering

Requirement: The system shall generate PDF and HTML invoices using organization-specific Handlebars templates with dynamic data binding and brand customization.

Business Value:

Enables brand consistency across all customer communications
Supports regulatory requirements (Swedish Energy Markets Inspectorate guidelines)
Allows per-organization customization without code changes
Future-proofs for multi-language support (Swedish, Norwegian, Danish, Finnish)

Priority: HIGH

Nordic Market Context: Swedish regulations require specific invoice information (consumption details, tax breakdown, grid owner, metering point). Templates must support regulatory compliance.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Organizations upload custom Handlebars templates	Upload HTML template via API (future) or blob	TC-030	Template stored successfully
Templates support dynamic data binding	Render with test invoice data	TC-031	All fields populated
PDF generation from HTML with compliance	Generate PDF, verify format and content	TC-032	A4, readable, complete
Template versioning supported	Create v2.0.0, verify old batches use v1.0.0	TC-033	Version isolation working
Templates updateable without affecting in-flight batches	Update template while batch processes	TC-034	In-flight uses old version
Template validation before activation	Upload template with missing variable	TC-035	Validation error returned
Organization branding applied	Logo, colors, fonts in rendered PDF	TC-036	Branding visible
Swedish regulatory fields required	Verify mätpunkt, grid owner, consumption present	TC-037	All required fields shown

Dependencies:

Handlebars.Net template engine library
PDF generation library (Playwright with headless Chromium or IronPDF)
Blob storage for template files
Template metadata storage with version tracking

Risks & Mitigation (Nordic Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Template rendering performance bottleneck	HIGH	HIGH	- Compiled template caching (24-hour TTL) - Parallel rendering within 32-item batches - POC testing: render 10K invoices in < 5 min - Horizontal scaling of BatchItemWorkers	Technical Architect
PDF generation quality issues (Swedish characters)	MEDIUM	MEDIUM	- UTF-8 encoding throughout - Font embedding for åäö characters - Visual regression testing - Sample PDF review with Swedish content	QA Team
Swedish Energy Markets Inspectorate compliance	LOW	CRITICAL	- Legal review of template requirements - Required fields checklist in template validation - Compliance testing with regulatory samples - Annual regulatory update review	Legal/Compliance
Template injection attacks	LOW	CRITICAL	- Sandboxed Handlebars execution - No {{eval}} or {{exec}} helpers - Template sanitization - Security code review	Security Officer

2.5 BR-005: Multi-Channel Delivery with Nordic Integration

Requirement: The system shall deliver invoices through multiple channels (email, postal, future: Kivra, e-Faktura, SMS) with configurable priority, automatic fallback, and integration with Nordic delivery partners.

Business Value:

Increases delivery success rate to >98% (vs ~92% email-only)
Reduces returned mail costs (postal fallback)
Meets customer preferences (digital-first, postal backup)
Enables compliance with Swedish "rätt till pappersfaktura" (right to paper invoice)
Future-proofs for digital mailbox mandate discussions

Priority: HIGH

Nordic Market Context: Swedish law requires postal option for all customers. Kivra has 4.2M users in Sweden (40% population). E-faktura standard for B2B. Multi-channel is regulatory and competitive necessity.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Email delivery via SendGrid	Send 1000 test invoices	TC-040	>95% delivered
Postal delivery via 21G bulk SFTP	Create zip, upload to 21G SFTP	TC-041	File accepted by 21G
Channel priority configurable per org	Set priority [email, postal], verify order	TC-042	Email attempted first
Automatic fallback on failure	Force email failure, verify postal attempted	TC-043	Postal triggered automatically
Delivery status tracked per invoice	Check invoice metadata after delivery	TC-044	Status and timestamps recorded
Retry logic for transient failures	Simulate SendGrid 429 rate limit	TC-045	Retries with backoff
Delivery confirmation logged	Verify audit log entries	TC-046	All deliveries logged
21G bulk processing at scheduled times	Verify postal queue processed 12:00 and 20:00	TC-047	Batches sent on schedule

Dependencies:

SendGrid account with Nordic sender reputation
21G SFTP server access and credentials
Azure Key Vault for credential storage
Postal queue processing service (scheduled workers)
ZIP file generation for 21G format

Risks & Mitigation (Nordic Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
SendGrid Nordic deliverability issues	MEDIUM	HIGH	- Dedicated IP for Nordic sending - SPF/DKIM/DMARC configuration - Sender reputation monitoring - Backup: Azure Communication Services - Gradual ramp-up for new organizations	Operations Manager
21G SFTP connectivity issues	LOW	HIGH	- Retry logic with exponential backoff - Dual SFTP credentials (primary/backup) - Alert on connection failure - 21G SLA monitoring - Manual upload procedure documented	Operations Manager
Postal delivery delays (Swedish postal challenges)	MEDIUM	MEDIUM	- Set customer expectations (5-7 business days) - Track 21G processing confirmations - Escalation process for delays>10 days - Alternative print partner identified	Product Owner
Email spam filtering (Swedish ISPs)	MEDIUM	MEDIUM	- Warm up sending IP gradually - Monitor bounce rates by ISP - Whitelist requests to major ISPs (Telia, Tele2, Telenor) - Plain text + HTML multi-part emails	Operations Manager
Kivra API rate limits (future)	MEDIUM	MEDIUM	- Queue-based sending - Respect Kivra rate limits (documented in API) - Fallback to email if Kivra unavailable	Technical Architect

2.6 BR-006: Real-Time Batch Status Visibility

Requirement: Users shall view batch processing status, progress statistics, and individual invoice statuses in real-time through the API with granular breakdown by processing stage and delivery channel.

Business Value:

Reduces support inquiries by 60% (self-service status checking)
Enables proactive issue resolution before customer complaints
Improves operational transparency and trust
Provides audit trail for service level agreement (SLA) tracking

Priority: MEDIUM

Nordic Market Context: Utility operations teams work standard hours (08:00-17:00). Real-time visibility enables remote monitoring and reduces after-hours escalations.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Batch status via API (queued/processing/completed/failed)	GET /batches/{id} during processing	TC-050	Status reflects reality
Progress percentage accurate	Compare reported % to actual processed count	TC-051	Within 1% accuracy
Individual invoice status queryable	GET /batches/{id}/items with status filter	TC-052	Returns correct filtered list
Statistics include success/failure counts	Verify statistics.successfulItems matches reality	TC-053	Exact match
Estimated completion time provided	Check estimatedCompletionAt during processing	TC-054	Within 20% of actual
Failed invoices listed with error details	Query items with status=failed	TC-055	Error messages present
Status updates within 30 seconds	Process batch, poll status API	TC-056	Updates every ≤30 seconds
Delivery channel breakdown shown	Verify deliveryChannelBreakdown matches actual	TC-057	Accurate breakdown

Dependencies:

Batch metadata updates from all workers
Real-time statistics calculation (incremental updates)
Blob storage access for metadata reads
API caching strategy for frequently-polled batches

Risks & Mitigation:

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Performance impact of frequent metadata updates	MEDIUM	MEDIUM	- ETag-based optimistic concurrency - Batch statistics updates (not per-invoice) - Caching layer for status API - Throttle updates to max 1/minute	Technical Architect
Stale status data (eventual consistency)	MEDIUM	LOW	- Document 30-second update SLA - Timestamp on status response - Retry-After header for frequent polls - WebSocket push for Phase 2	Product Owner

2.7 BR-007: Security & Access Control

Requirement: The system shall implement OAuth 2.0 authentication with Microsoft Entra ID, role-based access control with 6 distinct roles, organization-level data isolation, and comprehensive audit logging compliant with Swedish and EU security standards.

Business Value:

Ensures GDPR Article 32 compliance (security of processing)
Prevents unauthorized data access and potential €20M GDPR fines
Enables customer trust and enterprise sales (security requirements in tenders)
Supports SOC 2 Type II compliance for future certification

Priority: CRITICAL

Nordic Market Context: Swedish utilities handle sensitive customer data (personnummer, consumption patterns). GDPR fines can reach 4% of annual turnover. Enterprise security is non-negotiable.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
OAuth 2.0 with Entra ID authentication	Attempt API access with/without token	TC-060	401 without token, 200 with valid token
6 roles implemented	Verify all roles in PostgreSQL	TC-061	All 6 roles present
Users access only their organization data	User from Org A attempts Org B access	TC-062	403 Forbidden
All data access logged to audit trail	Review audit_logs table after operations	TC-063	All actions logged
API authentication required (all endpoints except /health)	Call endpoints without token	TC-064	401 on all except /health
MFA enforced for admin roles	Admin login without MFA	TC-065	MFA challenge presented
API key rotation every 90 days	Check key age in Key Vault	TC-066	Alerts at 80 days
Failed login lockout (5 attempts = 15 min)	Attempt 6 failed logins	TC-067	Account locked

Dependencies:

Microsoft Entra ID tenant configuration
PostgreSQL schema for users, roles, user_organization_roles
Azure Key Vault for secrets management
Audit logging infrastructure
MFA provider integration

Risks & Mitigation (Nordic/EU Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
GDPR non-compliance penalty	LOW	CRITICAL	- Annual GDPR compliance audit - Privacy Impact Assessment (PIA) completed - Data Protection Officer (DPO) review - Datainspektionen (Swedish DPA) guidelines followed - EU Standard Contractual Clauses for vendors	Legal/Compliance
Unauthorized personnummer access	LOW	CRITICAL	- Personnummer encrypted at rest - Access logging for all PII fields - Role-based field-level access control - Swedish Personal Data Act compliance	Security Officer
Authentication complexity delays onboarding	MEDIUM	MEDIUM	- Entra ID B2B invitation flow - Self-service org admin provisioning - Clear onboarding documentation - SSO with customer Entra ID tenants	Product Owner
Audit log storage costs (7-year retention)	MEDIUM	LOW	- PostgreSQL for hot logs (1 year) - Archive to blob after 1 year - Compressed JSON format - Query optimization	Technical Architect

2.8 BR-008: GDPR & Swedish Data Protection Compliance

Requirement: The system shall comply with GDPR and Swedish Data Protection Law including all data subject rights, lawful processing basis, 7-year retention for invoices, data minimization, and Nordic data residency.

Business Value:

Avoids GDPR fines (up to €20M or 4% of annual turnover)
Enables enterprise sales (GDPR compliance is tender requirement)
Builds customer trust and brand reputation
Supports Swedish utility regulatory requirements (Energimarknadsinspektionen)

Priority: CRITICAL

Nordic Market Context: Swedish Datainspektionen actively enforces GDPR. Recent fines in telecom/energy sector for inadequate security. Data residency within EU required for many public utility contracts.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Right to access: Data export API	Request customer data export	TC-070	JSON export with all customer invoices
Right to erasure: Anonymization	Request customer deletion, verify PII removed	TC-071	Personnummer, name, email redacted
7-year invoice retention	Check lifecycle policy config	TC-072	Invoices retained 7 years
Audit logging for all data access	Query audit_logs for customer data access	TC-073	All accesses logged
Data residency (Nordic countries only)	Verify blob storage regions	TC-074	West/North Europe only
Consent management for digital delivery	Track customer delivery channel consent	TC-075	Consent recorded
Privacy policy compliance	Legal review	TC-076	Approved by legal
Lawful basis documented	Review data processing inventory	TC-077	Contract basis for invoice data

Dependencies:

Legal review of GDPR compliance approach
Data anonymization procedures and testing
Azure Blob lifecycle policies for retention
Data Processing Agreement (DPA) with Azure
Privacy Impact Assessment (PIA) completion

Risks & Mitigation (Swedish/EU Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Datainspektionen (Swedish DPA) audit	LOW	CRITICAL	- Annual self-assessment against GDPR - Document all processing activities (ROPA) - DPO appointed and consulted - Privacy by design in architecture - Regular employee training	Legal/Compliance
Cross-border data transfer violations	LOW	CRITICAL	- All data stays in EU (Azure West/North Europe) - No backup to non-EU regions - Vendor contracts include EU Standard Clauses - Azure compliance certifications verified	Legal/Compliance
Personnummer handling violations	MEDIUM	CRITICAL	- Personnummer only in encrypted fields - Access logging for all reads - Minimal retention (7 years, then deletion) - Swedish Personal Data Act guidelines - No personnummer in URLs or logs	Security Officer
Right to erasure vs 7-year retention conflict	MEDIUM	HIGH	- Anonymization instead of deletion (legal basis: accounting law) - Legal opinion obtained - Balance data subject rights with legal obligations - Documented in privacy policy	Legal/Compliance
Third-party processor compliance (SendGrid, 21G)	MEDIUM	HIGH	- Data Processing Agreements (DPA) signed - Sub-processor list maintained - Regular compliance audits - EU-based data centers only	Legal/Compliance

2.9 BR-009: Operational Monitoring & Observability

Requirement: The system shall provide comprehensive monitoring through Application Insights, structured logging with Serilog, real-time dashboards, and automated alerting to enable 24/7 operational visibility and proactive issue resolution.

Business Value:

Reduces mean time to detection (MTTD) from hours to minutes
Enables proactive issue resolution before customer impact
Supports SLA compliance and reporting
Reduces on-call burden through automated diagnostics

Priority: HIGH

Nordic Market Context: Swedish customers expect high service quality. Many utilities have SLA commitments (99.9% uptime). Winter heating season requires 24/7 monitoring.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Application Insights integrated (all services)	Verify telemetry in Azure portal	TC-080	All services sending data
Structured logging with correlation IDs	Trace request across services	TC-081	Same correlation ID
Custom metrics tracked	Verify metrics in dashboard	TC-082	Batch, delivery, queue metrics present
Dashboards refresh every 5 minutes	Check dashboard timestamp	TC-083	≤ 5 minutes old
Dashboards accessible to authorized users	Login as different roles	TC-084	Access granted appropriately
Critical alerts trigger within 5 minutes	Simulate high error rate	TC-085	Alert received within 5 min
Alert escalation after 15 min unacknowledged	Don't acknowledge alert	TC-086	Escalation triggered
PII masked in logs	Search logs for personnummer	TC-087	No personnummer found

Required Dashboards:

Operations Dashboard: Active batches, queue depths, worker counts, error rate, health status
Performance Dashboard: API latency, processing times, PDF generation, delivery latency
Business Dashboard: Invoices processed, delivery breakdown, top organizations
Vendor Dashboard: Batches by format, parsing success rates

Dependencies:

Application Insights workspace
Alert action groups (email, SMS)
Dashboard configuration and permissions
On-call rotation schedule

Risks & Mitigation (Nordic Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Alert fatigue from false positives	HIGH	MEDIUM	- Tuned thresholds based on baseline - 2-week monitoring before alerts live - Weekly alert review meetings - Alert suppression during maintenance	Operations Manager
Insufficient monitoring during off-hours	MEDIUM	HIGH	- 24/7 on-call rotation - Automated incident creation in Jira - Runbook for common issues - PagerDuty integration for escalation	Operations Manager
Log storage costs exceeding budget	LOW	MEDIUM	- 90-day log retention - Sampling for high-volume logs - Cost alerts at 80% budget - Archive old logs to blob	Technical Architect
Missing critical metrics	MEDIUM	MEDIUM	- Monthly metrics review - Stakeholder feedback on dashboard usefulness - Iterate dashboard based on incidents	Operations Manager

2.10 BR-010: Test Data Strategy (GDPR Compliance)

Requirement: The system shall use only synthetic, non-sensitive test data in all non-production environments, with zero copying of production data to staging, to ensure GDPR compliance and prevent data breaches.

Business Value:

Ensures GDPR Article 5(1)(b) compliance (purpose limitation)
Prevents catastrophic data breach from non-production environments
Reduces storage and transfer costs (no production data duplication)
Enables offshore development team participation (India)

Priority: CRITICAL

Nordic Market Context: Swedish Datainspektionen prohibits production data in test environments. Indian development team cannot access personnummer data. European team must lead production debugging.

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Zero production data in staging	Audit staging blob storage	TC-090	No real personnummer found
Synthetic data generator creates realistic batches	Generate 10K synthetic invoices	TC-091	Valid structure, fake PII
European team handles production issues	Production bug workflow documented	TC-092	No PII sent to offshore team
Reproduction scenarios use synthetic data	Create synthetic scenario from production bug	TC-093	Issue reproducible
Staging data clearly marked as test	Visual indicators in UI, filename patterns	TC-094	Test data obvious
Production access restricted (European team only)	Attempt production access from India VPN	TC-095	Access denied (geo-fenced)
Synthetic data follows Swedish patterns	Review generated personnummer, addresses	TC-096	Realistic but invalid

Dependencies:

Synthetic data generation tool (Swedish personnummer, addresses, etc.)
Staging environment completely isolated from production
Network policies restricting production access
Documentation of production issue workflow

Risks & Mitigation (EU/India Context):

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Accidental production data leak to staging	LOW	CRITICAL	- Automated scanning for real personnummer patterns - No database copying tools - Production data access audit logs - Annual security training	Security Officer
Offshore team delays due to data restrictions	MEDIUM	MEDIUM	- European team creates reproduction scenarios - Comprehensive synthetic data sets - Well-documented issue reports - Pair programming for production issues	Product Owner
Synthetic data unrealistic (testing gaps)	MEDIUM	MEDIUM	- Generate from real data distributions (anonymized) - Edge cases library (long names, special chars) - Swedish address/personnummer validation - Regular synthetic data quality review	QA Team
Production debugging bottleneck (European team only)	MEDIUM	MEDIUM	- European team on-call 24/7 - Comprehensive monitoring reduces debugging needs - Runbooks for common issues - Knowledge transfer to European team	Operations Manager

2.11 BR-011: Invoice Download API

Requirement: Users shall be able to download generated invoices (PDF and HTML) through authenticated API endpoints with access control and audit logging.

Business Value:

Enables customer service to retrieve invoices for disputes
Supports reprint requests without reprocessing
Facilitates regulatory compliance (invoice provision upon request)
Enables future customer portal integration

Priority: HIGH

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
API endpoint to download PDF by invoice ID	GET /invoices/{id}/pdf	TC-100	PDF file returned
API endpoint to download HTML by invoice ID	GET /invoices/{id}/html	TC-101	HTML returned
Download links in batch item response	GET /batches/{id}/items/{itemId}	TC-102	pdfUrl and htmlUrl present
Access control: org users only	User from Org A downloads Org B invoice	TC-103	403 Forbidden
Download generates audit log entry	Download invoice, check audit_logs	TC-104	Entry created
Content-Disposition header for PDF	Check HTTP response headers	TC-105	Filename in header
Rate limiting on downloads	Download 1000 invoices rapidly	TC-106	Rate limit applied

Dependencies:

Blob storage SAS token generation
Access control middleware
Audit logging service

Risks & Mitigation:

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Unauthorized invoice access	LOW	HIGH	- Organization boundary checks - Audit all downloads - Rate limiting - Anomaly detection	Security Officer
Bandwidth costs for large volumes	MEDIUM	LOW	- CDN for frequently accessed invoices - Compression - Monitoring	Technical Architect

2.12 BR-012: Batch History & Search

Requirement: Users shall be able to search, filter, and list historical batches for their organization with support for date ranges, status filters, and vendor format filtering.

Business Value:

Enables troubleshooting and root cause analysis
Supports operational reporting and SLA tracking
Facilitates audit compliance
Improves user experience with search capabilities

Priority: MEDIUM

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
List batches with pagination	GET /batches?page=1&pageSize=50	TC-110	Paginated list returned
Filter by date range	GET /batches?from=2025-11-01&to=2025-11-30	TC-111	Only Nov batches returned
Filter by status	GET /batches?status=completed	TC-112	Only completed batches
Filter by vendor format	GET /batches?vendorCode=GASEL	TC-113	Only GASEL batches
Search by batch name	GET /batches?search=November	TC-114	Name contains "November"
Sort by upload/completion date	GET /batches?sortBy=uploadedAt&order=desc	TC-115	Newest first
Returns last 90 days by default	GET /batches (no filters)	TC-116	Last 90 days only
Access restricted to organization	User queries batches from other org	TC-117	Empty results

Dependencies:

Batch metadata indexing strategy
Query performance optimization
Blob storage metadata queries or search index

Risks & Mitigation:

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Slow queries with large batch history	MEDIUM	MEDIUM	- Index on organization_id, date - Pagination required - Consider Azure Cognitive Search for Phase 2	Technical Architect

2.13 BR-013: Notification System

Requirement: The system shall send email notifications to designated organization contacts when batch processing completes successfully or fails, including summary statistics and error reports.

Business Value:

Reduces manual status checking effort by 80%
Enables proactive issue resolution
Improves customer satisfaction with timely updates
Supports SLA monitoring and reporting

Priority: MEDIUM

Acceptance Criteria:

Criterion	Measurement Method	Test Case	Target
Email sent on batch completion	Complete batch, verify email received	TC-120	Email received within 5 min
Email sent on batch failure	Force batch failure, verify email	TC-121	Email received within 5 min
Email includes summary statistics	Review email content	TC-122	Total, success, failed counts present
Email includes error report for failures	Review failure email	TC-123	Failed items listed with reasons
Recipients configurable per organization	Update org config, verify new recipient	TC-124	Email to correct recipients
Email template professional and branded	Review email design	TC-125	EG branding applied
Links to batch status in email	Click link in email	TC-126	Opens to batch detail

Dependencies:

Email service (SendGrid or Azure Communication Services)
Email templates (HTML)
Organization configuration for recipients

Risks & Mitigation:

Risk	Likelihood	Impact	Mitigation Strategy	Owner
Email deliverability to org admins	MEDIUM	MEDIUM	- SPF/DKIM/DMARC for notification domain - Fallback to SMS for critical alerts	Operations Manager
Notification fatigue	MEDIUM	LOW	- Configurable notification thresholds - Digest emails for multiple batches - Opt-in for verbose notifications	Product Owner