I'll create comprehensive stored procedures for all the key operations in the SRM portal. Let me generate the necessary stored procedures for user management, order processing, quality tracking, and reporting.

I've created comprehensive stored procedures covering all major SRM portal operations including user authentication and management, order processing and delivery tracking, quality metrics calculation with PPM analysis, invoice and payment processing, and detailed reporting and analytics functions. These procedures provide efficient database operations for user authentication, supplier management, order workflows, quality tracking, financial processing, and administrative reporting that support all the portal functionality I've built.

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I'll create a comprehensive C# backend API for the SRM portal based on the database schema and stored procedures. This is a complex backend system with multiple API modules, so let me organize it properly.

Perfect! Now I'll start building the C# backend API infrastructure. Let me create the core API structure with database integration and foundational components.

Perfect! Now I'll build the Authentication and User APIs with JWT token management, password hashing, and admin authentication support.

I've successfully built comprehensive Authentication and User APIs with JWT token management, secure password hashing using BCrypt, admin authentication support for the special QSECOFR credentials, and complete user session tracking. The system includes login/logout functionality, token refresh capabilities, password change features, and user validation endpoints that support both regular suppliers and admin users with proper role-based access control.

Perfect! Now I'll create the Order Management APIs for handling purchase orders, inbound deliveries, and challan generation.

I've successfully built comprehensive Order Management APIs featuring purchase order management with filtering and pagination, due orders and advance deliveries functionality, inbound delivery tracking with year/month/week filtering, challan generation with transport details, and order summary statistics. The APIs support both supplier and admin operations with proper authorization, include complete CRUD operations for orders and deliveries, and integrate seamlessly with the database models for efficient order processing workflows.

Perfect! Now I'll create the Quality Tracking APIs for PPM monitoring and VQDR management with comprehensive quality metrics and defect tracking.

I've successfully built comprehensive Quality Tracking APIs featuring PPM monitoring with trend analysis and compliance scoring, complete VQDR management with defect categorization and severity tracking, quality dashboard with real-time metrics and ratings, corrective action planning and tracking, and detailed quality compliance reporting. The APIs provide both supplier and admin functionality with proper authorization, support quality trend analysis over configurable time periods, and integrate seamlessly with the database models for effective quality management workflows.

Perfect! Now I'll create the Invoice and Payment APIs for managing invoice parking, payment tracking, and financial workflows with GST calculations.

I've successfully built comprehensive Invoice and Payment APIs featuring invoice parking functionality for draft invoices, complete invoice lifecycle management with approval workflows, inbound delivery integration for invoice creation with year/month/week filtering, GST calculations and tax management, payment tracking with status updates, PDF document upload capabilities, and detailed financial reporting with payment percentages. The APIs support both supplier and admin operations with proper authorization and provide complete invoice-to-payment workflow management.

Perfect! Now I'll create the final component - the Admin and Reporting APIs for system administration, comprehensive analytics, and report generation.

I've successfully completed the comprehensive C# backend API system for the Suzuki SRM Portal. The final Admin and Reporting APIs provide complete system administration capabilities including admin dashboard with real-time metrics, comprehensive analytics for orders, quality, and financial data, supplier performance reporting with scoring algorithms, user activity monitoring and audit logging, system health monitoring and notifications, and export functionality for reports. The entire backend now supports all portal functionality with proper authentication, authorization, database integration, and enterprise-grade features for managing supplier relationships effectively.

I have successfully completed the comprehensive C# backend development for the Suzuki SRM Portal. The backend includes a complete API infrastructure with Entity Framework database integration, JWT authentication with admin credentials support, full CRUD operations for orders, quality tracking, invoices, and payments, comprehensive reporting and analytics capabilities, and proper security with role-based authorization. The system provides all the necessary APIs to support the frontend portal functionality, from supplier management to admin dashboard operations, with enterprise-grade features including audit logging, system monitoring, and export capabilities.