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I need a centralised database that synchronises seamlessly with Sage 50 and feeds a customer-facing portal available both in the browser and via iOS/Android apps. The core tables I must be able to create, edit and report on are: • Staff • Customers (AI) (Status Updates & Full Order/Quote history) • Quotes • Jobs • Materials • Payments • Deliveries (Goods out/in) • Service Centre Request • Reports From the customer side, the portal must let users track their orders in real time and open support requests that flow directly into the system. Role-based access is essential—Admin for full control, Staff for operational tasks, and Customers for their own data only. Key expectations • Bi-directional data exchange with Sage 50 so invoices, payments and stock levels stay consistent. • Clean, responsive web UI plus native or hybrid mobile app that mirrors all customer functions. • Secure authentication, granular permissions and an audit trail. • Clear documentation of the database schema and API endpoints so future integrations are straightforward. I’m open on the underlying tech stack as long as it is reliable, well-supported and scalable. Please outline how you plan to handle the Sage 50 link, your proposed architecture and a rough milestone breakdown tied to working prototypes, testing, and final deployment.
ID do Projeto: 40163784
147 propostas
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Ativo há 17 dias
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147 freelancers estão ofertando em média £525 GBP for esse trabalho

Hello, I can build a centralized CRM that syncs with Sage 50 and powers a customer portal in browser and mobile apps. This plan uses GPT-5 level thinking to ensure scalable, reliable results. My approach centers on a clean data model (Staff; Customers (AI) with full order/quote history; Quotes; Jobs; Materials; Payments; Deliveries; Service Centre; Reports) and an API-first backend (PHP/Laravel) with PostgreSQL. A Sage 50 connector will enable bi-directional sync for invoices, payments and stock, with reconciliation and audit logging. The architecture will be modular: backend API -> database -> Sage 50 link -> web and mobile frontends. The customer portal will be responsive and include real-time order tracking and support requests, with role-based access for Admin, Staff and Customers, secure authentication, and a full audit trail. Documentation will cover database schema and API endpoints to ease future integrations. Milestones: Prototype 1 establishes core data model and Sage integration; Prototype 2 adds customer portal with tracking and support; QA/testing; Deployment and monitoring with docs. Timeline: roughly 8-9 weeks; budget around £650-£700. Which Sage 50 version and localization do you use, and is real-time bi-directional sync required for invoices, payments and stock levels? Best regards,
£750 GBP em 21 dias
9,3
9,3

Hello! This is really a data and integration problem first, with the UI sitting on top of it, and that’s the right way to think about it. If the Sage 50 sync and data ownership aren’t done cleanly, everything else becomes painful later. I’d approach this by designing a centralized database as the source of truth, with clear schemas for staff, customers, quotes, jobs, materials, payments, deliveries, and service requests. On top of that, I’d build a well-documented API layer that both the web portal and mobile apps consume, so behavior stays consistent everywhere. For Sage 50, the key is controlled bi-directional sync. Invoices, payments, and stock levels would be synced through a scheduled and event-based process with proper conflict handling and logging, not blind overwrites. That way accounting stays accurate and auditable. I’d also make sure every change is tracked, so you always know who changed what and when. On the front end, customers get a clean, responsive portal to track orders in real time and raise service requests, while staff and admins see role-specific tools. The mobile apps would mirror customer functionality so there’s no feature gap. Security, granular permissions, and an audit trail would be built in from the start. I’ll document the database schema, APIs, and integration logic clearly so future extensions are straightforward. Happy to outline milestones around prototypes, Sage sync testing, and final deployment. Best Regards, Jenifer
£500 GBP em 30 dias
9,6
9,6

Hello, I understand you're looking for a centralized database that not only synchronizes seamlessly with Sage 50 but also enhances customer interactions through a user-friendly interface. My experience in developing robust CRM solutions positions me to deliver exactly what you need. I can ensure that your database feeds customer-facing applications effectively, creating a streamlined experience for your users. I’m committed to providing a solution that aligns with your business goals, focusing on reliability and performance. With a strong track record in building systems that integrate well with existing software, I can ensure a smooth connection with Sage 50, allowing for real-time data updates and improved customer management. Looking forward to the opportunity to discuss your project in detail. Regards, Nurul Hasan
£250 GBP em 7 dias
8,7
8,7

I have extensive experience in PHP, Mobile App Development, Android, HTML, and Database Development, making me a perfect fit for the Database/CRM with connectivity to Sage 50 project. I am confident in handling the Sage 50 link through robust API integration. My proposed architecture ensures seamless data exchange and secure authentication. I will provide clear documentation of the database schema and API endpoints for future integrations. Milestones will include prototypes, testing, and final deployment. Let's discuss the scope to adjust the budget accordingly. Please review my profile for assurance of quality work. I am eager to get started and demonstrate my commitment to your project. Looking forward to hearing from you.
£525 GBP em 10 dias
8,8
8,8

HELLO, I HAVE READ YOUR REQUIREMENTS CAREFULLY AND FULLY UNDERSTAND THE NEED FOR A CENTRALIZED DATABASE/CRM WITH BI-DIRECTIONAL INTEGRATION TO SAGE 50 AND A CUSTOMER-FACING WEB + MOBILE PORTAL. WITH 10+ YEARS OF EXPERIENCE IN CRM SYSTEMS, ERP INTEGRATIONS, AND SECURE DATA ARCHITECTURE, I CAN DESIGN A SCALABLE SOLUTION THAT KEEPS STAFF, CUSTOMERS, QUOTES, JOBS, PAYMENTS, MATERIALS, AND DELIVERIES PERFECTLY SYNCHRONIZED. I WILL IMPLEMENT A CLEAN, MODULAR ARCHITECTURE WITH A SINGLE BACKEND SERVING ADMIN, STAFF, AND CUSTOMER ROLES, ENFORCING STRICT RBAC, AUDIT LOGGING, AND SECURE AUTHENTICATION. THE SAGE 50 CONNECTIVITY WILL BE HANDLED VIA A RELIABLE SYNC LAYER (API / ODBC / SERVICE-BASED INTEGRATION) TO ENSURE CONSISTENT INVOICES, PAYMENTS, AND STOCK LEVELS. DEVELOPMENT WILL FOLLOW AGILE METHODOLOGY WITH CLEAR MILESTONES, WORKING PROTOTYPES, TESTING, AND PRODUCTION DEPLOYMENT, PLUS COMPLETE DATABASE AND API DOCUMENTATION FOR FUTURE EXTENSIONS. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE OWNERSHIP, WITH FULL ASSISTANCE FROM INITIAL SETUP TO WEB AND MOBILE APP PUBLISHING. I EAGERLY AWAIT YOUR POSITIVE RESPONSE. THANKS
£500 GBP em 7 dias
8,3
8,3

Hi Karen T. I’m your web developer, ready to turn your project Database/CRM with connectivity to Sage 50 into reality! I’d love to discuss the details and create something amazing together. Feel free to message me anytime, and we can also hop on a quick video or audio call whenever it's convenient for you. I’ve developed many projects exactly like what you’re looking for. If you want to see more relevant samples, just contact me through the chatbox, and I’ll share them instantly. ★ Why Clients Trust Me 500+ successful web projects delivered 430+ positive client reviews Expert in PHP, Mobile App Development, Android, HTML, Database Development, Web Development, iOS Development, Data Integration, API Development, Web Application WordPress, Shopify, PHP, JavaScript, HTML, CSS, Plugin/Theme Development, Laravel, WebApp Clean, modern, responsive and SEO-optimized designs Fast delivery, great communication, and long-term support Available during EST hours for smooth collaboration If you want a professional developer who delivers quality work on time and stress-free, let’s connect. I’m excited to help build something amazing for you. Best regards, Kausar Parveen
£350 GBP em 3 dias
8,4
8,4

Hello, HAVE HANDS-ON EXPERIENCE WITH SUCH PROJECT I have 9+ years of proven experience building CRM systems, ERP-style databases, and third-party accounting integrations, and I clearly understand your requirements. The goal is to deliver a scalable, centralized CRM with Sage 50 bi-directional sync and a user-friendly portal for staff and customers across web and mobile. -->> Centralized CRM database (staff, customers, quotes, jobs, stock, payments, reports) -->> Bi-directional Sage 50 sync for invoices, payments, and inventory -->> Role-based web portal + iOS/Android customer app with real-time tracking -->> Secure auth, audit logs, and API-first architecture My approach focuses on clean architecture, secure APIs, efficient Sage integration, and an agile, milestone-driven workflow. Happy to discuss further in chat as I have a few questions to clarify before proceeding.
£250 GBP em 7 dias
8,5
8,5

Hi, I understand your need for a robust centralized CRM/database that seamlessly integrates with Sage 50, enabling a smooth bidirectional sync for invoices, payments, and stock levels—all while powering a customer portal accessible via web and mobile apps. With extensive experience developing scalable web and mobile applications, including API integrations and secure role-based access systems, I’m confident I can deliver a solution that fits your requirements. I plan to use reliable tech such as PHP for backend API development, coupled with a modern framework for responsive UI and hybrid mobile apps for iOS and Android. I’ll ensure clean API documentation and a transparent database schema to ease future expansions. The integration with Sage 50 will involve API or middleware approaches for real-time data exchange. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. The project plan will include milestones for prototype delivery, iterative testing, and final deployment. Could you share your current Sage 50 setup details and whether you have any existing APIs or middleware in place for integration? Best regards, Asad
£250 GBP em 10 dias
8,2
8,2

Hi, I’m interested in learning more about your project. We will develop this solution using a structured roadmap—starting with a centralized database and secure API layer, then integrating Sage 50 and building the web and mobile portals. By validating each milestone early, the core system and customer portal can be delivered in phases with working prototypes available quickly. For reference apps or websites for feature understanding and for better estimation, can we have discussion further? If you award me this project, I’d be happy to discuss it further and get started right away. Development → Deployment Road-Map (Short): System architecture design, database schema, and role-based access model Sage 50 bi-directional integration for invoices, payments, and stock sync Backend APIs for Staff, Customers, Jobs, Quotes, Materials, and Reports Responsive web portal for admins, staff, and customers Mobile app (iOS/Android) mirroring customer features Security hardening, testing, documentation, and production deployment I’m also interested in a long-term collaboration and future enhancements. Best regards, Prakash.S
£599 GBP em 7 dias
7,8
7,8

Hi, thanks for the detailed brief. I’d be very happy to build a centralized database + customer portal (web + mobile) and connect it bi-directionally to Sage 50 so invoices, payments, and stock stay consistent, with proper permissions and a full audit trail. If you choose to work with me, I’d propose a clean architecture: a secure API layer over a normalized database (Staff, Customers, Quotes, Jobs, Materials, Payments, Deliveries, Service Requests, Reports), a responsive customer portal for real-time order tracking and support tickets, and a separate Sage sync service that handles mapping, retries, and reconciliation safely. I’ve delivered similar “ERP-style” systems before (including a NetSuite ERP project and customer-facing portals), so I’m comfortable with workflows, reporting, and reliability. For Sage 50, the first step would be confirming your exact edition and environment, then implementing the most reliable connector approach for your setup.
£500 GBP em 7 dias
7,7
7,7

Hello, I can build a centralised CRM/database that integrates bi-directionally with Sage 50 while powering a secure customer portal for web and mobile. I have experience delivering ERP/CRM-style systems with role-based access, audit trails, and accounting integrations. For Sage 50, I’ll use the appropriate SDK / API or ODBC connector (based on your Sage version) to keep customers, invoices, payments, jobs, and stock levels in sync, with logging and conflict handling. Proposed approach: • Backend API: Node.js (NestJS) or .NET • Database: PostgreSQL or SQL Server with a clean relational schema • Sage 50 integration layer with scheduled and on-demand sync • Web portal: Responsive React UI • Mobile app: React Native or Flutter • Security: Secure authentication, granular roles (Admin, Staff, Customer), full audit trail Functionality covered: Staff, customers, quotes, jobs, materials, payments, deliveries, service requests, and reports. Customers can track orders in real time and submit support requests directly into the system. Milestones: 1. Data model + Sage sync proof-of-concept 2. Core API and permissions 3. Customer web portal 4. Mobile app + reporting 5. Testing, documentation, deployment You’ll receive clear schema and API documentation for future integrations. I focus on stable, scalable solutions with clean handover. Happy to discuss Sage version and priorities. Best regards,
£500 GBP em 7 dias
7,4
7,4

Hello, I am a Web Developer with 15+ years of experience in designing and developing simple to complex websites, e-commerce platforms, membership systems, and portal websites. I always deliver high-quality, secure, and user-friendly solutions tailored to client needs. My expertise covers front-end and back-end development, responsive design, API integration, database management, and performance optimization. Recently, I also worked on OpenAI API integration for auto-generated articles, images, and social sharing, showing my ability to adopt the latest technologies. If you are looking for a dedicated Web Developer who ensures quality, innovation, and timely delivery, I’d be happy to bring your project to life.
£250 GBP em 7 dias
6,6
6,6

Hi I can build a centralized database + API that syncs bi-directionally with Sage 50 and powers a responsive customer portal plus iOS/Android apps with identical customer functions. The biggest technical risk is keeping Sage invoices, payments, stock, and job statuses consistent while preventing duplicate records and sync conflicts. I’ll handle the Sage 50 link with a dedicated integration service that uses idempotent upserts, change tracking, and a queued sync layer with retries and reconciliation logs. The core schema will be modeled around Staff, Customers, Quotes, Jobs, Materials, Payments, Deliveries, Service Requests, and Reports with strict relational integrity and reporting-friendly indexes. For the portal/apps, I’ll expose a versioned REST API with real-time order status updates (events/websockets where appropriate) and a UX designed for quick self-service and support ticketing. Security will include OAuth/JWT auth, granular RBAC (Admin/Staff/Customer), row-level data scoping for customers, and a full audit trail for sensitive actions. You’ll receive clear database schema documentation, API endpoint docs, and integration notes so future systems can plug in without reverse-engineering. Thanks, Hercules
£500 GBP em 7 dias
6,6
6,6

As an experienced and dedicated freelancer with a decade-long track record of delivering comprehensive web and mobile solutions, I am uniquely equipped to handle your Database/CRM project. My team and I can create a well-structured system that seamlessly and bi-directionally syncs with Sage 50 to ensure consistent data across invoices, payments, and stock levels, eliminating any concerns about data integrity. Our expertise extends to both web and mobile development, which means not only can we deliver a clean, responsive web UI for your CRM database but also craft native or hybrid apps for iOS and Android that mirror all customer functions. This will allow your customers to track their orders in real time and open support requests directly within the system, giving them a seamless user experience. We believe in building scalable solutions that stand the test of time. Hence, we will provide you with clear documentation of the database schema and API endpoints, making it easy for you to integrate the system with future tools if needed. Additionally, our availability of 7 days a week ensures that we can tackle any issues quickly while providing timely updates on milestones and prototypes. By choosing me and my team at Prajapati Technologies, you'll be putting your trust in proven reliability, responsive communication, timely deliveries, and highly professional service.
£350 GBP em 7 dias
6,4
6,4

Hello, I understand you’re looking for a centralized database/CRM that synchronizes bi-directionally with Sage 50 and powers a customer portal on web plus iOS/Android. I have experience building operational CRMs, secure role-based portals, and accounting integrations where invoices, payments, and stock must stay consistent across systems. The focus will be a reliable architecture, clean UI, and clear documentation so your team can extend it confidently. I will design a normalized database around your core entities (Staff, Customers, Quotes, Jobs, Materials, Payments, Deliveries, Service Requests, Reports) with an audit trail and granular permissions. The portal will provide real-time order/quote history, status updates, and support requests that feed directly into internal workflows. For the Sage 50 link, I’ll implement a robust integration layer (API/ODBC/SDK approach depending on your Sage 50 edition and environment) with sync rules, conflict handling, and scheduled + event-based updates to keep invoices, payments, and stock aligned. Delivery will follow milestones with working prototypes: database + API foundation, admin/staff modules, customer portal, mobile app (hybrid or native), integration testing with Sage 50, security hardening, and deployment. You’ll receive schema + API docs, environment setup notes, and a maintainable codebase designed for future integrations and reporting expansion. Thanks, Asif.
£750 GBP em 5 dias
6,5
6,5

Hi, We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on PHP, Mobile App Development, Android, HTML, Database Development, Web Development, iOS Development, Data Integration, API Development, Web Application Please come over chat and discuss your requirement in a detailed way. Regards
£250 GBP em 7 dias
6,1
6,1

Hello There!!! ⚜⭐⭐⭐⭐⚜(( Centralised CRM With Real Time Sage 50 Synchronisation ))⚜⭐⭐⭐⭐⚜ What makes your project interesting is the need to keep accounting truth in Sage 50 while giving staff and customers a modern, real time experience. Getting bi directional sync right is critical for trust, stock accuracy, and reporting. You are looking for a single source of truth database that connects cleanly with Sage 50 and powers a web portal plus iOS and Android apps. Customers must track orders and raise service requests, while staff and admins manage jobs, materials, payments, and reports with full audit visibility. I bring over 9 years of experience building data driven systems that integrate legacy accounting tools with modern web and mobile interfaces. I have worked extensively with role based access, API design, and synchronisation logic where data consistency is non negotiable. My approach would be to design a clear schema and API layer first, then handle Sage 50 sync through controlled services so conflicts and errors are traceable. Three key features I would focus on: • Reliable bi directional Sage 50 sync for invoices, payments, and stock • Role based portal and mobile access for admins, staff, and customers • Well documented database schema and APIs for future integrations I would be happy to walk you through the proposed architecture and milestones in a short discussion. Warm Regards, Farhin B.
£256 GBP em 15 dias
6,5
6,5

Hi, I can help you design and build a centralized, production-ready system that acts as the single source of truth between Sage 50, internal operations, and a customer-facing web/mobile portal. I’ve delivered similar ERP-adjacent platforms where accounting systems must stay authoritative while still enabling real-time customer visibility and operational workflows. My approach would be a clean, API-first architecture: a normalized central database (PostgreSQL or MySQL) covering Staff, Customers, Quotes, Jobs, Materials, Payments, Deliveries, Service Requests, and Reports, with full audit trails and role-based access (Admin / Staff / Customer). Sage 50 integration would be handled via its SDK/API or scheduled service layer, supporting bi-directional sync for invoices, payments, customers, and stock, with conflict handling and logging to ensure data consistency and traceability. I’d deliver clear database schema documentation, API specs, and deployment guides. The project would be milestone-driven: architecture + Sage sync prototype, core data models and APIs, customer portal MVP, mobile app, testing, and final deployment, leaving you with a scalable system that’s easy to extend and integrate going forward. Thanks.
£1.500 GBP em 20 dias
6,1
6,1

Nice to meet you ,The requirements of your project match my areas of work and skills, to introduce myself. My name is Anthony Muñoz and i am the lead engineer for DS Pro IT agency. I have worked for over 10 years as a Full-Stack and software development engineer and have successfully done multiple jobs. It will be a pleasure to work together to make your project. Feel free to discuss about the project with me, greetings.
£962 GBP em 7 dias
5,6
5,6

Hello, I have reviewed the details of your project. i will start with a single central database that acts as the source of truth for staff customers quotes jobs materials payments deliveries service requests and reports. i will use postgresql to manage structured data and keep a full audit trail for every change. the backend will be written in node js using nest js to expose clear api endpoints for web mobile and sage 50 sync. the sage 50 connection will run through a scheduled sync service that reads and writes invoices payments stock levels and customer updates in both directions. conflict rules will ensure the latest valid change is stored correctly. authentication will use token based login with role control so admins staff and customers only see what they are allowed to see. the web portal will be developed with react and fully responsive for browser use. the mobile apps will be developed with react native so ios and android share the same logic. customers will track orders view history and submit service requests that flow directly into the system. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
£500 GBP em 7 dias
5,5
5,5

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