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I built our freight-forwarding solution in .NET with an MS SQL back end, covering everything from enquiries and quotations through to job management, House BL printing, and P&L reporting. The only missing piece is a seamless bridge to external accounting software—this is where I need your expertise. What I want • Direct integration between my freight-forwarding database and a well-known accounting package (e.g., Tally, QuickBooks, Xero or a similar platform you can propose). • Automatic transfer of all financial events we already capture—sales invoices, supplier bills, receivables, payables, and cost allocations—so the books stay in sync without duplicate entry. • Bi-directional status updates: if an invoice is paid or a journal is adjusted in the accounting system, the change should reflect inside my application. • Robust error handling and clear logging so any failed sync can be diagnosed quickly. Tech context The current stack is C# (.NET 6) with SQL Server 2019. Core financial data is exposed through stored procedures and REST endpoints, so you can choose between direct SQL calls, Web API consumption, or an integration layer written in C#—whichever is most reliable for the target accounting platform’s API or SDK. Deliverables 1. An integration service (source code plus compiled executable or library) that handles authentication, data mapping, and scheduled sync. 2. Configuration screens inside the existing WinForms interface (or a slim web page, if you prefer) where an admin can enter API keys, toggle modules to sync, and set frequency. 3. Deployment guide and schema changes, if any, in a concise README. 4. Short video walkthrough or live demo proving end-to-end data flow for at least one export and one import cycle. 5. Unit or integration tests covering the critical sync paths. Acceptance criteria • A new freight shipment invoice appears in the accounting package within 5 minutes of save. • Payment status changed to “Paid” in the accounting package updates the local job P&L view on refresh. • No duplicate records on repeated syncs. • Error logs are written to a dedicated table and surfaced in the UI. If you have prior experience integrating ERP or logistics systems with accounting APIs, I’d love to see it. Let’s eliminate the last manual step in our workflow and give users a true one-stop freight management platform.
Project ID: 40489211
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36 freelancers are bidding on average ₹25,925 INR for this job

As an experienced web and software developer, I strongly believe I am the ideal candidate for your project. Over the years, I have built a plethora of comprehensive digital solutions for a wide variety of businesses, which is exactly what your freight-forwarding system is in need of. With solid proficiency in C#, .NET, and SQL Server, among other skills on my repertoire, I have no doubt that I can seamlessly integrate your current setup with any accounting software you prefer – Tally, QuickBooks, or Xero. My work approach is rooted in practical innovation and client-centricity. I strive to understand the core objectives behind a technological integration in order to deliver optimal results – something that resonates deeply with your need for a truly one-stop freight management platform with flawless syncing. Furthermore, my familiarity with building cloud-ready systems will be especially useful during the deployment process. Beyond just delivering on your requirements, I bring a level of agility and dependability to my work that ensures projects are executed efficiently without ever compromising on quality. With me onboard, you can rest assured of a robust yet flexible integration service complete with clear logging and error handling.
₹25,000 INR in 5 days
4.9
4.9

✅ I have experience integrating .NET and SQL Server business applications with accounting platforms such as QuickBooks, Xero, and ERP systems through REST APIs, SDKs, and middleware services, including bi-directional synchronization, reconciliation, and financial data mapping. ✅ I would build a dedicated C# integration service that handles authentication, invoice and bill synchronization, payment status updates, scheduled sync jobs, duplicate prevention, audit logging, retry mechanisms, and configurable mappings while integrating cleanly with your existing .NET 6 architecture. ✅ Delivery will include source code, configuration UI, automated synchronization, error logging dashboard, deployment documentation, test coverage, and a live demonstration showing successful invoice export, payment-status import, and P&L synchronization without duplicate transactions.
₹25,000 INR in 7 days
3.9
3.9

Hello, I'm Karthik, a Senior .NET Developer with 15+ years of experience in ERP, logistics, accounting integrations, and enterprise software development. Your freight-forwarding platform already has strong operational workflows, and I can help complete the final piece by building a reliable accounting integration layer for Xero, QuickBooks, Tally, or another suitable accounting system. ✔ .NET 6 / C# Development ✔ SQL Server Integration ✔ QuickBooks, Xero & Tally API Integrations ✔ Bi-Directional Data Synchronization ✔ Invoice, Payables & Receivables Automation ✔ Sync Scheduling, Logging & Error Handling ✔ Admin Configuration Screens ✔ Unit & Integration Testing I will implement idempotent sync logic to prevent duplicate records, real-time status updates for payments, detailed audit/error logs, and a maintainable integration service with complete documentation and deployment support. I have experience integrating business, ERP, and logistics systems with accounting platforms and can deliver a scalable solution that eliminates manual bookkeeping processes. Regards, Karthik 15+ Years Experience | .NET | SQL Server | ERP Integrations | Accounting APIs
₹50,000 INR in 7 days
4.8
4.8

Hi, What specific accounting software are you considering for the integration, and do you already have access to their API documentation? I can create a seamless bridge between your freight-forwarding solution and an accounting package like QuickBooks or Xero. With over 5 years of experience in .NET and SQL Server, I specialize in building reliable integration services. I can ensure that financial events sync automatically, with bi-directional status updates and robust error handling. You’ll receive a user-friendly configuration screen, a detailed deployment guide, and thorough documentation, along with a video walkthrough of the integration process. Let’s eliminate manual entry and enhance your workflow. I’m excited to help you achieve a streamlined solution that keeps your books accurate and efficient. Best Regards,
₹25,000 INR in 7 days
3.0
3.0

Hi, I can build a robust .NET 6 integration layer that synchronizes your freight-forwarding system with accounting platforms such as QuickBooks, Xero, or Tally, supporting invoices, bills, receivables, payables, cost allocations, and bi-directional status updates. The solution will include configurable sync settings, idempotent processing to prevent duplicates, detailed error logging, automated scheduling, and a clean admin interface, delivering a seamless accounting bridge for your logistics workflow.
₹25,000 INR in 7 days
3.0
3.0

As an experienced full-stack developer, I believe my skillset aligns perfectly with your freight system integration project. With deep expertise in C# (.NET 6), SQL Server 2019 and Web API development, I have built robust systems that emphasize data integrity and integration. Having successfully completed diverse projects including API integration for ERP and logistics systems, your requirements sound both interesting and familiar. In terms of deliverables, I promise to provide not just a functional integration service but also a comprehensive documentation covering everything from deployment guidelines to any necessary schema changes. Additionally, I will provide dynamic configuration screens that allow admins to control the syncing process as per their requirement as well as thorough unit or integration tests for all critical sync paths. My ultimate goal is to eliminate manual efforts for you through an end-to-end one-stop solution. It would be my pleasure to contribute towards making your already impressive freight management platform even better!
₹12,500 INR in 7 days
2.6
2.6

Hello, I can integrate your .NET freight forwarding system with external accounting software so invoices, supplier bills, receivables, payables, payments, and cost allocations stay synced without duplicate entry. I understand your current system already handles enquiries, quotations, jobs, House BL printing, and P&L, so the goal is to add a reliable accounting bridge without disturbing existing workflows. I can work with Tally, QuickBooks, Xero, or another suitable platform depending on your preference and API access. I can build a C# integration service for authentication, data mapping, scheduled sync, error handling, retry logic, duplicate prevention, and bi directional payment status updates. I can also add configuration screens for API keys, sync modules, frequency settings, and logs inside your existing WinForms app or a slim web page. I have experience with .NET, SQL Server, REST APIs, accounting data flows, sync services, stored procedures, and business system integrations. I can deliver source code, deployment notes, schema updates, tests, and a demo showing invoice export and payment status import working end to end. Best regards Ankit
₹12,500 INR in 2 days
2.2
2.2

Your freight events will fire more than once. Retries, status recalculations, manual overrides all look like valid invoice triggers to a naive integration. If the ledger logic doesn't deduplicate on the freight reference key, you end up chasing phantom AR entries and reconciliation gaps through MS SQL for months. The approach: an event-sourced integration layer where each shipment action (booking, departure, arrival, delivery) produces exactly one accounting record, keyed on the freight transaction ID with an idempotency check before insert. Invoices generate on delivery confirmation; ledger entries post to a staging table first, then commit atomically so partial writes can't corrupt the balance. The Web API layer accepts status-change calls from your freight system, validates the event type and idempotency key, then writes to a dedicated set of MS SQL accounting tables. No rewrites to your existing freight schema. The accounting tables carry foreign keys back to your shipment records and nothing touches what's already working. M1: Event ingestion API, idempotency layer, invoice generation on delivery, MS SQL accounting schema. 16,000 INR, 5 days. M2: Ledger posting, AR/AP summaries, financial reporting endpoints tied to shipment records. 16,000 INR, 5 days. What does your freight system use to trigger status changes today? Direct DB writes, a service layer, or something else?
₹32,000 INR in 10 days
1.6
1.6

Hello, Your freight-forwarding system already has the hard operational workflows in place—the missing piece is a reliable accounting bridge that removes duplicate entry without risking financial data accuracy. I can help build a .NET-based integration service that connects your existing SQL Server/REST data layer with an accounting platform such as Tally, QuickBooks, Xero, or another suitable option based on your market and API requirements. I have experience with ERP/accounting integrations, REST APIs, SQL-based systems, background services, and business-critical sync workflows, so I understand the importance of accuracy, logging, and auditability. Before implementation, I would review your stored procedures/API responses and recommend the most reliable accounting platform integration path. Best regards, Mayuri Senior .NET Integration Developer
₹25,000 INR in 7 days
0.6
0.6

Your freight system captures every financial event, yet the books still require duplicate entry. You need a push of sales invoices, supplier bills, receivables, payables, and cost allocations into an accounting package, plus pull status updates when payments or adjustments occur. I would build a FastAPI middleware service that polls your MS SQL database for new or changed records, transforms them into the target accounting API format, and handles the reverse update loop. Does your .NET system expose change-tracking via timestamp columns or a transaction log, so we can detect modified records without full table scans?
₹12,500 INR in 5 days
0.4
0.4

With my extensive experience in developing software using .NET, C#, and working with SQL Server, I'm confident that I am the right fit for integrating your freight-forwarding solution with an external accounting platform. I have a deep understanding of the key financial data points that need to be synced for seamless operations, such as sales invoices, supplier bills, receivables, payables, and cost allocations. In addition to my technical capabilities, I have prior experience in integrating ERP and logistics systems with accounting APIs, which is directly relevant to your project's requirements. This ensures that I can deliver the efficient and real-time synchronization you need for your freight-forwarding operations. I pride myself on high-quality work delivered on time and on budget – without compromising on proper error handling and logging. I will equip your system with robust error handling mechanisms so any failed syncs can be quickly identified and resolved. My comprehensive approach also guarantees that all the deliverables outlined in the project description will be met including: an integration service with a user-friendly interface, detailed documentation, testing for critical path passage, and dedicated tables for error logs. Let's turn your freight management system into a one-stop-shop functionality by seamlessly integrating it with the accounting platform of your choice. Provide me with this opportunity, and you won't regret it!
₹25,000 INR in 15 days
0.5
0.5

Hi, I’m Sean, an AI & Full-Stack Developer with over 10 years of experience in building scalable applications, particularly in integrating complex systems like freight solutions and accounting software. Your need for a seamless integration between your freight-forwarding database and an accounting package resonates well with my expertise. I have successfully integrated similar systems using .NET and MS SQL, and I am well-versed in employing REST APIs for bi-directional data synchronization. My previous projects have ensured real-time updates, robust error handling, and clear logging mechanisms, which I understand are crucial for your application. For your requirements, I propose developing a dedicated integration service which will handle the authentication, data mapping, and scheduling of data syncs according to your existing stack. I will include comprehensive unit tests, a user-friendly configuration interface for API management, and thorough documentation. I can deliver the initial version of the integration service within a week, ensuring your freight management platform is fully functional and eliminates manual entry. What specific accounting software do you envision integrating with your system? Thanks, Sean
₹36,750 INR in 7 days
3.3
3.3

Hi, I am an IITian with 10+ years of experience to develop similar projects ,I will build a bidirectional sync engine using .NET 6+ with Hangfire for scheduled batch jobs and real-time webhooks, connecting your MS SQL freight database to QuickBooks Online via their official .NET SDK or Xero API with OAuth2. I'll map your sales invoices, supplier bills, receivables, and payables to their accounting entities using a staging table pattern for idempotent sync with error reconciliation, deployed as a Windows Service or Azure Function with SQL-based audit logging. Kindly click on the chat button so I can share you my relavant projects. Lets connect
₹12,500 INR in 7 days
0.0
0.0

Aquí tienes una **versión reducida y lista para propuesta, <1500 caracteres**: --- Hello! I’ve reviewed your description fully. I can create a seamless integration between your .NET freight-forwarding solution (SQL Server 2019) and accounting software like Tally, QuickBooks, or Xero. My focus will be on automatic, bi-directional sync of invoices, bills, receivables, payables, and cost allocations—keeping your books up-to-date without duplicates. ⚡The key challenge is maintaining real-time accuracy with robust error handling and logging while fitting smoothly into your existing C# WinForms workflow. ✅I will develop an integration service (C#) that handles authentication, data mapping, and scheduled syncs. Admins can configure API keys, toggle modules, and set sync frequency via a simple UI. I’ll provide deployment instructions, unit/integration tests, and a short demo showing one full export/import cycle. Error logs will be captured in a dedicated table and surfaced in the UI. Q1: Which accounting platform do you prefer as the first integration target? Q2: Are there any custom fields in invoices or journals that must map specifically? Q3: Would you like the config UI embedded in WinForms or a lightweight web page? Ready to eliminate the last manual step and automate your freight accounting fully.
₹25,000 INR in 7 days
0.0
0.0

Hello, I have hands-on experience developing .NET and SQL Server applications and have worked on similar projects involving API integrations and financial data synchronization. I can build a reliable C# integration service to sync invoices, supplier bills, receivables, payables, and payment status updates between your freight-forwarding system and the accounting platform. The solution will include scheduled sync, bi-directional updates, duplicate prevention, error logging, and configurable admin settings. I am comfortable working with .NET 6, SQL Server, REST APIs, and third-party integrations, and can deliver clean, maintainable code along with documentation and testing. I would be happy to discuss the accounting platform and implementation approach further. Best Regards, Kushagra Kaushal
₹25,000 INR in 7 days
0.0
0.0

Hi there! I am confident in my ability to seamlessly integrate your freight-forwarding database with your chosen accounting software. Your project description indicates a need for a clean, professional, and automated solution. Specifically, I will create a direct integration between your .NET-based system and the accounting package of your choice, ensuring automatic transfer of financial events and bi-directional updates for accurate synchronization. With my expertise in C# and SQL, I am well-equipped to deliver a user-friendly and robust integration service that meets all your requirements. I am the right person for this project because of my proven track record in developing seamless integrations and my commitment to speedy communication and fast turnaround. I am available for a quick chat! Best Regards, Ty
₹26,250 INR in 7 days
0.0
0.0

Hello, I hope you are doing well. I am a professional accountant with over 5 years of experience in bookkeeping and financial management. I specialize in maintaining accurate financial records and helping businesses stay organized and compliant. I can assist you with: • Bookkeeping (daily, weekly, or monthly) • Bank & credit card reconciliation • Preparation of monthly financial statements • Accounts payable & receivable management • Payroll processing • Month-end and year-end closing entries • Expertise in QuickBooks and NetSuite I focus on accuracy, timely delivery, and clear communication to ensure your financial data is always up to date and reliable. I would love to discuss your requirements in detail and understand how I can add value to your business. Looking forward to working with you. Best regards, Samriti G.
₹12,500 INR in 5 days
0.0
0.0

Hi, I like that this project goes beyond simply building a website and focuses on creating a complete digital presence that can support long-term growth. What stands out is the combination of website development, SEO, content, and ongoing optimisation. The most successful projects are usually the ones where all of these pieces work together rather than being managed independently. I can help with: • Website development and optimisation • SEO implementation and content structure • User experience and conversion improvements • Marketing automation and workflow setup • Ongoing maintenance and support My approach would typically include: • Reviewing the current setup and objectives • Identifying the highest-impact opportunities first • Implementing the core solution with scalability in mind • Testing and optimisation before launch • Providing clear documentation and handover support One advantage I bring is access to a broader delivery network through my BPO operations. If the project expands beyond the initial scope—whether that's design, development, content creation, marketing, automation, customer support, or administrative services—I can coordinate the additional expertise required while maintaining a single point of contact and consistent project management. The goal is not only to deliver the immediate requirements, but to build a solution that remains scalable as your business grows. Even if we do not end up working together, you will still leave with a free consultation and clearer direction for the project. Regards, Alex
₹18,750 INR in 7 days
0.0
0.0

Hello Sir/Madam, I am interested in your project. I have good experience in Hindi typing, MS Excel, Tally, GST accounting, data entry, and bookkeeping. I can complete the work accurately and within the given deadline. I am dedicated, detail-oriented, and ready to start immediately. I assure you of quality work and timely delivery. Looking forward to working with you. Thank you.
₹25,000 INR in 7 days
0.0
0.0

Hello, I am a Full Stack Developer with 14+ years of experience in .NET, C# and MS SQL Server development. I have worked on ERP, logistics and accounting system integrations and can build the accounting integration for your freight forwarding software as per your requirements. I can integrate your system with accounting platforms like Tally, QuickBooks, Xero or similar software and make automatic sync for invoices, supplier bills, receivables, payables and payment status updates. I can also build bi-directional sync, error logging, scheduled sync service and admin settings page inside your existing WinForms application. I can develop the integration using REST APIs, SQL procedures or a separate .NET service based on what works best for the accounting platform. I will provide clean source code, deployment guide, testing and demo for the complete workflow. I can complete the work quickly with best quality and proper support.
₹37,500 INR in 5 days
0.0
0.0

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