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I need a solid, real-time bridge between my Comarch XL ERP and an external inventory management system. All critical flows—stock level updates, order tracking, supplier data, and full order management—have to move cleanly in both directions so numbers stay aligned across platforms without manual uploads. API integration is my preferred route, so the job revolves around designing, coding, and deploying a secure set of endpoints (or leveraging existing ones) that push and pull the data Comarch XL exposes. Clear field mapping, error handling, and logging are mandatory because I want zero silent failures when large order batches hit the system. Deliverables • Production-ready API connector linking Comarch XL and the inventory app • Configuration files or scripts needed to install and run it in my environment • Brief technical documentation covering endpoint specs, authentication, and data mappings • A round of end-to-end testing that proves stock, orders, and supplier records sync accurately Acceptance criteria: every item created, updated, or closed in either system must reflect in the other within the agreed polling interval (or instantly if webhooks are available) and survive a 48-hour stress test without data loss.
Project ID: 40529964
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121 freelancers are bidding on average $440 USD for this job

Hi there, We understand you need a seamless, real-time integration between Comarch XL ERP and your external inventory management system, ensuring stock levels, orders, supplier data, and order management are synchronized across both platforms without manual intervention. Our team at Webbook Studio has experience in API integration and software architecture, with skills in PHP, C#, MySQL, and API development. We've worked on similar projects, such as integrating e-commerce platforms with ERP systems, like the integration of a British online store with Shopify and ERP integration. We'll design a secure API connector with clear field mapping, error handling, and logging to ensure data consistency and prevent silent failures. Can you tell us if Comarch XL provides webhooks for real-time data synchronization, or if we should rely on polling intervals? Feel free to message us to discuss the details! — Webbook Studio
$500 USD in 10 days
9.2
9.2

Hi, I've built ERP-to-inventory bridges like this before. You need real-time sync between Comarch XL and your external system — that's API integration with solid database architecture. We handle the data flow, conflict resolution, and keep both systems in sync. Message me to discuss the approach. Best Regards, Hasan
$250 USD in 21 days
8.7
8.7

Hi — Elias here from Miami. I understand you're looking to create a reliable connection between your Comarch XL ERP and an external inventory management system. This integration is crucial for ensuring real-time data synchronization and operational efficiency. What usually matters most here is the data flow and how it affects your business processes. A common issue in systems like this is managing the different data structures and permissions between platforms. The tricky part is usually ensuring that updates in one system reflect immediately in the other without conflicts or data loss. My approach would focus on establishing a robust API layer to facilitate seamless communication between the two systems. I would prioritize maintainability and scalability, allowing for future enhancements as your business grows. Having worked on similar integrations, I understand the importance of creating a solid foundation that minimizes risks. A few questions to better understand the scope: Q1 – What specific data points do you need to synchronize in real-time? Q2 – Are there any particular workflows or user roles that should be considered? Q3 – Do you have existing documentation for your Comarch XL setup and the inventory system? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$500 USD in 3 days
8.5
8.5

⭐⭐⭐⭐⭐ Build a Real-Time Bridge Between Comarch XL ERP and Inventory System ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for an API integration between Comarch XL ERP and your inventory management system. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for API integrations. I will design, code, and deploy secure endpoints that ensure seamless data flow between both platforms. ➡️ Why Me? I can easily create your real-time API connector as I have 5 years of experience in API development and integration, focusing on data synchronization, error handling, and logging. My expertise includes building secure endpoints, ensuring clear field mapping, and conducting thorough testing to prevent silent failures. ➡️ Let’s have a quick chat to discuss your project in detail. I can provide samples of my previous work and show you how I can help. Looking forward to our conversation! ➡️ Skills & Experience: ✅ API Development ✅ Data Synchronization ✅ Error Handling ✅ Endpoint Security ✅ Field Mapping ✅ Technical Documentation ✅ Configuration Management ✅ Testing & Debugging ✅ Data Management ✅ Inventory Management ✅ Comarch XL ERP ✅ Real-Time Data Processing Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
8.0
8.0

Hi, this is a systems integration problem, not just an API hookup, and that distinction matters when stock, order, and supplier records have to stay aligned under load. The real engineering risk is sync correctness under retries, partial failures, and out-of-order updates, especially if Comarch XL and the inventory platform expose different event semantics. I’ve built production integrations where the hard part is not moving data once, but making sure updates remain idempotent, observable, and recoverable over time. Your requirement for zero silent failures, field mapping, and a 48-hour stress test is the right bar. The closest past work here is Custom Feature Development & Integration and HubSpot CRM Implementation & Interactive Senior Living Website, both of which involved extending live systems, mapping business objects, and delivering tested integrations with documentation. I usually structure this as separate sync layers for change detection, transformation, delivery, and reconciliation. That keeps order management isolated from stock updates and makes retry behavior safer when large batches hit the connector. I’d also put real attention on audit logs, dead-letter handling, conflict rules, and replayability so every create/update/close event can be traced end to end. If useful, I can sketch the sync architecture first, including entity mapping, failure paths, and webhook vs polling tradeoffs. Thanks, Hercules
$500 USD in 7 days
7.6
7.6

Hi, I'm Muhammad Idrees from Global IT Vision. A real-time, bidirectional bridge between Comarch XL ERP and an external inventory system is exactly the kind of integration we build - our own ERP product EloERP and logistics platform iCargos run precisely this type of two-way stock/order sync. I'd design and deploy a secure middleware layer that pushes and pulls stock levels, order tracking, supplier data and full order management between the two systems with clear field mapping, idempotent sync, robust error handling, retry/backoff, and full logging so there are zero silent failures and numbers always reconcile. I'll use Comarch XL's API/endpoints (or build the needed ones), add alerting on mismatches, and document the mapping so it's maintainable. Real-time via webhooks where available, scheduled reconciliation as a safety net. - Muhammad Idrees, Global IT Vision Pvt. Ltd
$680 USD in 14 days
8.2
8.2

Hello, We have thoroughly reviewed your project requirements for integrating Comarch XL with an external inventory management system. Your need for a robust, real-time API bridge that ensures seamless data flow is crystal clear to us. We've successfully executed similar integrations, ensuring flawless synchronization between ERP systems and inventory platforms. Our expertise in API development and integration, coupled with a strong foundation in error handling and data mapping, will be instrumental in achieving your goals. With over 8 years of experience, our team led by Puru Gupta, ranked in the top 1% on Freelancer.com, specializes in building intelligent, scalable solutions. Our background in creating secure, real-time data connectors and our proficiency in PHP, C#, and database management align perfectly with your project demands. We're confident in our ability to deliver a production-ready API connector, complete with comprehensive documentation and rigorous testing. We invite you to message us with more details, and we'll provide a tailored proposal within 24 hours to ensure your project's success. Looking forward to collaborating, Puru Gupta
$750 USD in 7 days
7.7
7.7

Hi, I can help you with the Comarch XL to inventory system integration. I've done similar ERP bridges before, and the key is getting the polling intervals right and handling those large batch transactions without data loss. I'd build it with C# for the connector layer since Comarch XL tends to play nicer with .NET, and use your existing API endpoints on the inventory side. Full error logging and retry logic are standard in my work. I'm Edward, 10+ years doing this kind of integration work. Happy to chat more about the specifics.
$250 USD in 7 days
7.6
7.6

A real-time bidirectional sync between Comarch XL and your inventory system with zero silent failures is exactly the kind of integration I've built for other ERP platforms. I'd build a middleware connector service in Node.js or Python that maps Comarch XL's API endpoints to your inventory system's API — handling stock levels, orders, supplier data, and order status changes in both directions with proper field mapping and data transformation. Every sync operation gets structured logging with retry logic and dead-letter queuing so no batch silently fails, and I'll implement both polling (configurable interval) and webhooks where available for near-instant propagation. Error handling is built around idempotent operations so duplicate pushes during retries never corrupt data. The connector will include authentication management, rate limiting, and a health-check dashboard so you can monitor sync status at a glance. I'll run full end-to-end testing including the 48-hour stress test before handoff. I can start immediately — let's discuss your Comarch XL API access and the inventory system's integration docs.
$250 USD in 1 day
7.3
7.3

Hello, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, C# Programming, Software Architecture, MySQL, API, Database Management, API Development, API Integration Please come over chat and discuss your requirement in a detailed way. Thank You
$590 USD in 7 days
7.2
7.2

As seasoned software developer with profound background in API integration, I am ideally suited to design, code and deploy the real-time bridge you require between your Comarch XL ERP and inventory management system. My extensive experience spans over 13+ years in which I have virtually tried and successfully integrated every API under the sun - including those for ERP systems like your Comarch XL. Being equally proficient in both python & C-based projects, I fully comprehend the magnitude of this project. Ensuring a smooth flow of critical information is my forte and I understand the value of complete alignement across platforms. Consequently, my coding focuses on brevity and efficiency without compromising accuracy or data security. Above all, with an extensive background in web automation and data extraction,I understand without doubt that clean field mapping, error handling and reliable logging are not only 'important', but absolutely mandatory for this job. Building error-proof solutions is second-nature to me because failing silently when large order batches hit a system is simply not an option! Upon completing our work together, I'll share with you a brief but comprehensive technical documentation covering endpoint specifications, authentication processes and data mappings - allowing for easy future maintenance. Let's ensure 100% clarity while we reach that.
$250 USD in 1 day
7.1
7.1

Hi, I’m excited to propose for your project! Here’s what I’ll deliver: - A robust, real-time API bridge between Comarch XL ERP and your external inventory management system. This ensures seamless bidirectional synchronization of critical data including stock levels, order tracking, supplier information, and full order management. - Designing, coding, and deploying secure endpoints that will handle push and pull operations for the data exposed by Comarch XL. - Clear field mapping to ensure accurate data transmission, thorough error handling mechanisms, and comprehensive logging for zero silent failures during large batch operations. - Production-ready API connector with configuration files or scripts to set up and run in your environment. - Technical documentation covering endpoint specifications, authentication methods, and detailed data mappings. - End-to-end testing to verify that every item created, updated, or closed in either system reflects accurately in the other within the agreed polling interval (or instantly if webhooks are available), ensuring seamless integration without any data loss during a 48-hour stress test. The deliverables will ensure your systems stay perfectly aligned in real-time. I have extensive experience with API integrations and am confident in delivering high-quality, reliable solutions. Portfolio: https://www.freelancer.com/u/reedsystems Looking forward to working together!
$550 USD in 10 days
6.5
6.5

With a rich background in API development and integration, particularly with popular databases like MySQL and platforms such as Comarch XL, I believe I am the ideal candidate for your project. Over the past 12+ years, my team and I have built solid bridges between various systems to facilitate seamless data flows just like you're envisioning—establishing real-time connections, managing stock levels, processing orders accurately and much more. Our extensive skills and experience enable us to deliver production-ready, fully-documented solutions that meet stringent acceptance criteria. We ensure every item you create, update or close on either system is accurately reflected on the other—be it instantly via webhooks or within designated intervals through efficient polling. Our commitment to robust error handling and rigorous testing will provide you with the stability and accuracy needed for worry-free inventory management.
$250 USD in 10 days
7.0
7.0

Ready to start now ---- I can integrate your Comarch XL ERP with external inventory management system within 2-3 days surely. Give me chance to show you good result. Thanks
$300 USD in 3 days
6.5
6.5

As a seasoned and versatile software engineer, I possess the in-depth knowledge and mastery of several programming languages such as Python, Java, PHP and C#, which can be optimally utilized to integrate Comarch XL with your inventory system. I have successfully developed various custom software applications using server-to-server API integrations to ensure smooth and real-time data transmission between different systems. In addition, my experience in network and cyber security will be instrumental in designing and implementing a robust and secure set of endpoints to safeguard your data during transmission. With a strong familiarity with SQL language and MySQL database management, I will guarantee not only a clean alignment of numbers but also the availability of an accurate audit trail, which is essential for any ERP-inventory integration. Moreover, my proficiency in technical documentation coupled with comprehensive problem-solving skills ensures that all the field mapping, error handling procedures, and logging requirements will be met with reliable precision. And with your emphasis on stress testing and zero silent failures, rest assured they are within my deliverables sphere.I am excited to collaborate with you on this project to create a tailored API connector that meets all your expectations and guarantees a smooth two-way flow of critical data. Let's put my skills into action for you!
$633.33 USD in 2 days
6.3
6.3

Hello Dear! Greetings from Toriqul Global Solutions! We are pleased to introduce our company as a reliable and experienced provider of Web Design & Development services. Founded and led by Engineer Toriqul Islam, a B.Sc. graduate in Computer Science & Engineering from Rajshahi University of Engineering & Technology (RUET), our team brings over 10 years of industry experience. At Toriqul Global Solutions, we specialize in building modern, user-friendly, and high-performance websites that help businesses grow and stand out in the digital world. Our design approach focuses on simplicity, elegance, and functionality to ensure maximum user engagement. I have some question-- Please start a conversation to discuss your project. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB We would be honored to discuss your project requirements and help bring your ideas to life. Thank you for your time and consideration. Warm Regards, Toriqul Global Solutions
$250 USD in 3 days
6.2
6.2

Your challenge is syncing Comarch XL with your inventory system smoothly and in real time, avoiding manual updates and data mismatches. I recently integrated a mid-size ERP with a third-party inventory platform where reliable two-way syncing—including stock and order flows—was crucial. We designed APIs to push and pull data with clear field mapping, error handling, and robust logging so no errors went unnoticed. Do you prefer polling at fixed intervals or are webhooks available on both systems? Also, what’s the typical size of your order batches during peak times? This helps plan for performance under load. I will build a solid, production-ready API connector that keeps your data aligned, includes configuration scripts for easy deployment, and deliver concise documentation so your team can maintain it. After that, I’ll run full end-to-end tests and a 48-hour stress test to confirm no data loss or mismatches. Ready to start building this seamless integration and keep your numbers error-free.
$750 USD in 7 days
5.9
5.9

I will build a production-ready API connector that links Comarch XL with your external inventory system in real time. Key flows, stock levels, orders, and supplier data, will push and pull cleanly in both directions. The design emphasizes clear field mapping, rigorous error handling, and thorough logging to avoid silent failures during big batches. We will expose a secure API surface (or reuse existing endpoints) and provide deployment scripts and config files to run in your environment. A robust data model backed by MySQL, with plans for your Database Management needs, will keep every item perfectly in sync while C# Programming or PHP components handle business logic. Expect concise technical docs covering endpoint specs, authentication, and data mappings, plus a round of end-to-end testing that proves stock, orders, and supplier records sync accurately. Acceptance criteria like instant or near-instant reflection across systems, and resilience under 48-hour stress testing, will be validated. This approach aligns with your requirements and leverages MySQL, C# Programming, and Database Management in a practical, scalable way. To tailor this setup to your environment, What is your preferred balance between real-time accuracy and stability: should we push updates instantly via webhooks, or rely on a well-tuned polling interval that minimizes load while keeping stock and orders perfectly in sync?. Configuration files and scripts will be included to install, run, and monitor the c
$250 USD in 14 days
5.8
5.8

Hello, I can develop a solid, real time bridge between your Comarch XL ERP and an external inventory management system. Message me at your earliest convenience to discuss more details. Let's make it happen, Fahad.
$250 USD in 2 days
5.6
5.6

Hi, I can do this. I will build a secure real time API bridge between Comarch XL ERP and your inventory system to sync stock, orders, suppliers, and tracking in both directions. I will design and develop API endpoints to pull and push data from Comarch XL, with proper field mapping, authentication, and error handling to avoid any data mismatch. The system will include logging and monitoring so every transaction is tracked and no failure goes unnoticed. I will also ensure reliable sync using webhooks or scheduled polling depending on what Comarch XL supports, with full testing to confirm data consistency under load. Let's have a meeting so I can share the full approach, timeline, and cost estimate. I will also share my portfolio in the chat. Mughiraa
$500 USD in 7 days
5.6
5.6

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