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I am a full-cycle SAP Business One (SAP B1) developer working on end-to-end solutions including SDK add-ons and SAP Business One integrations with external systems. My work covers requirement analysis, development using DI-API, UI-API and Service Layer, SAP HANA / SQL Server queries, deployment, and production support. I have hands-on experience with: • SAP Business One SDK (DI-API, UI-API, Service Layer) • SAP Business One Integrations & Automation • Custom SAP B1 Add-On Development • SAP HANA & SQL Server Reporting • E-Invoicing & Compliance If this all sounds good to you, click the message button and let’s chat (I’ll respond in <30mins if I’m awake). 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: SAP, SAP Business One, SAP B1, SAP ByDesign, SAP ByD, SAP S/4HANA, SAP ECC, SAP HANA, SAP HANA DB, SAP HANA SQL, SAP Crystal Reports, SAP Fiori, SAP Fiori UX, SAP Fiori Apps, SAP Dashboards, SAP Pervasive Analytics, Boyum B1 Usability Package, B1UP, SAP Coresuite, SAP Xcelsius, SAP B1 SDK, DI API, UI API, Server DI API, B1i, B1i Integration Framework, SAP Service Layer API, REST API, SAP Add-ons, SAP Data Migration, Data Transfer Workbench, DTW, Copy Express, Solution Packages, LSMW, SAP Print Layout Designer, PLD, SAP Reporting, SAP Customization, SAP Workflow, SAP ABAP, SAP BADI, SAP Consulting,SAP Business One Developer, SAP B1 SDK Expert, SAP B1 Addon Developer, SAP Business One Integration Specialist, SAP Service Layer API Developer, SAP Business Technology Platform (BTP) Consultant, SAP S/4HANA Developer, SAP S/4HANA Cloud Extension Specialist, SAP S/4HANA API Developer, SAP Cloud SDK Developer, SAP CAP (Cloud Application Programming) Specialist, SAP RAP Developer, SAP Fiori Developer, SAP UI5 Developer, SAP Fiori App Developer, SAP Integration Suite Expert, SAP API Management Consultant, SAP Business One Customization Expert, SAP B1 API Integration Specialist, SAP B1if Integration Specialist, SAP Workflow Automation Expert, SAP Crystal Reports Developer (SAP B1), SAP Crystal Reports Customization Expert, SAP HANA SQL Developer, SAP HANA Cloud Developer, SAP HANA Optimization Consultant, SAP B1 Database Optimization Specialist, SAP Business One REST API Developer, SAP B1 Migration Specialist,SAP Business One (SAP B1) expert in SDK, DI API, UI API, Service Layer, B1if, HANA, Crystal Reports, DTW, PLD, integrations, custom add-ons, reporting, and data migration.

I’m Ahsan Hafeez, a Senior SAP B1 (SAP Business One) Technical Consultant & C# .NET Developer with over 8 years of experience helping global companies streamline operations, integrate ERP with e-commerce, and automate complex business processes. My focus is always on delivering measurable results, cutting costs, improving efficiency, and enabling growth. I specialize in SAP Business One customizations, ERP integrations, API development, and full-stack .NET solutions that empower businesses across retail, e-commerce, logistics, manufacturing, and healthcare. 🔧 Core Expertise ⚡ SAP B1 (SAP Business One) Development SDK Programming (.NET / C# / DI-API / Service Layer) Custom SAP BusinessOne Add-Ons & UI Enhancements Integrations: SAP Business One ↔ Shopify, WooCommerce, Amazon, Odoo, Salesforce, HubSpot SAP S/4HANA & HANA Cloud Connectivity 🔗 API Development & Automation RESTful API Design & Integration (ASP.NET Core / MVC) ERP, CRM & WMS Connectivity Middleware & Real-Time Data Sync End-to-End Business Process Automation 📊 Business Intelligence & Reporting SAP Crystal Reports (Dashboards, KPIs, Advanced Analytics) SQL Optimization & HANA Queries Power BI Data Visualization Automated Insight-Driven Reporting 💻 Full-Stack Development Web Apps: ASP.NET Core, MVC, C#, PHP, JavaScript, jQuery Frontend: HTML5, CSS3, Bootstrap Databases: MSSQL, SAP HANA, PostgreSQL, MongoDB ⚡ WooCommerce Development Custom Store Design & Development Theme Customization (Elementor, Divi, WPBakery, etc.) Plugin Development & Customization Secure Payment Gateway Integration (PayPal, Stripe, Authorize.net) ERP & API Integrations (SAP B1, Dynamics 365, Odoo, Salesforce, HubSpot) Maintenance, Security & Performance Optimization ⚡ E-Commerce Management End-to-End Store Setup & Configuration (WooCommerce, Shopify) Product Catalog Management (Bulk Uploads, Variations, Categorization) Order Processing & Inventory Synchronization Customer Accounts & Subscription Handling Shipping & Logistics Integration (DHL, FedEx, UPS, Royal Mail Click & Drop) Store Audits, Maintenance & Growth Strategy ☁️ Cloud & DevOps AWS (Lambda, EC2, S3) & Microsoft Azure Git, CI/CD Pipelines & Deployment Automation 💡 Why Clients Work With Me ✔️ Top Rated Plus – Among the top 3% of talent on Upwork ✔️ ERP Specialist – SAP B1, Integrations & Automation focus ✔️ Proven Track Record – 100% Job Success & consistent ⭐⭐⭐⭐⭐ reviews ✔️ Business Impact – I deliver solutions that cut costs, improve efficiency & scale operations 🚀 What You’ll Gain ✅ Streamlined ERP workflows & processes ✅ Secure, future-ready integrations ✅ Real-time insights with dashboards & reporting ✅ Scalable solutions designed for growth 📩 Let’s Connect! If you’re looking for an SAP Business One (SAP B1) Consultant, ERP Integration Expert, or Full-Stack .NET Developer, I’d love to help. I also offer a FREE 30-minute consultation to understand your goals and suggest the best solution. Best regards, Ahsan Hafeez SAP Business One | ERP Integrations | API Development | .NET C# Developer 🔑 Keywords: SAP Business One, SAP B1, SAP B1 SDK, SAP DI API, SAP Service Layer, SAP B1 Integration, SAP Crystal Reports, SAP HANA, SAP HANA Cloud, SAP S/4HANA, SAP ERP, ERP Automation, API Development, Middleware, Custom Add-On Development, RESTful APIs, SQL Server, Database Optimization, Shopify Integration, WooCommerce Integration, Amazon Vendor Central, Salesforce Integration, Odoo Integration, HubSpot Integration, Business Intelligence, Power BI Reporting, SAP Troubleshooting, Workflow Automation, SAP, SAP ByDesign, SAP ByD, SAP ECC, SAP HANA DB, SAP HANA SQL, SAP Fiori, SAP Fiori UX, SAP Fiori Apps, SAP Dashboards, SAP Pervasive Analytics, Boyum B1 Usability Package, B1UP, SAP Coresuite, SAP Xcelsius, UI API, Server DI API, B1i, B1i Integration Framework, SAP Service Layer API, REST API, SAP Add-ons, SAP Data Migration, Data Transfer Workbench, DTW, Copy Express, Solution Packages, LSMW, SAP Print Layout Designer, PLD, SAP Reporting, SAP Customization, SAP Workflow, SAP ABAP, SAP BADI, SAP Consulting, SAP Business One Developer, SAP B1 SDK Expert, SAP B1 Addon Developer, SAP Business One Integration Specialist, SAP Service Layer API Developer, SAP Business Technology Platform (BTP) Consultant, SAP S/4HANA Developer, SAP S/4HANA Cloud Extension Specialist, SAP S/4HANA API Developer, SAP Cloud SDK Developer, SAP CAP (Cloud Application Programming) Specialist, SAP RAP Developer, SAP Fiori Developer, SAP UI5 Developer, SAP Fiori App Developer, SAP Integration Suite Expert, SAP API Management Consultant, SAP Business One Customization Expert, SAP B1 API Integration Specialist, SAP B1if Integration Specialist, SAP Workflow Automation Expert, SAP Crystal Reports Developer (SAP B1), SAP Crystal Reports Customization Expert, SAP HANA SQL Developer, SAP HANA Cloud Developer, SAP HANA Optimization Consultant, SAP B1 Database , SAP Business One REST API Developer

🏆 100% Job Success Score 🏆 Top Rated Plus ✅ Accumulated over 3400+ hours of SAP Consultancy on Upwork. 💼 SAP ABAP | WRICEF | RAP | CDS | OData | BTP | AMDP | Fiori/UI5 | Integration Architect. Results-driven SAP Technical Consultant with strong expertise in SAP ABAP (WRICEF), Fiori/UI5, OData, RAP, AMDP, BTP and CDS Views. Proven track record in designing, developing, and integrating SAP solutions that streamline business processes and drive digital transformation. ✅ Skilled in custom Fiori app development, OData service creation, and Non-SAP integrations (Salesforce, .NET, Android, iOS) using IDocs, RFCs, SOAP, and REST web services. ✅ Hands-on experience in SAP Workflows, Smart Forms, Adobe Forms, Web Dynpro, and HCM Processes & Forms. ✅ Strong knowledge of enhancements (User-Exits, BAPIs, BADIs), object-oriented ABAP, and performance optimization. ✅ Strong experience with ECC, S/4HANA upgrades (1511 → 2022, 2020 → 2023, 2021 → 2023). Passionate about innovation, integration architecture, and scalable SAP solutions that align technology with business strategy.

Senior SAP S/4HANA ABAP Consultant with 13+ years of experience in ABAP development, integrations, ECC-to-S/4HANA migrations, upgrades, enhancements, reporting, forms, and production support across international SAP landscapes. I help SAP teams build reliable technical solutions across FI, MM, SD, PP, QM, and HCM. My work covers ABAP Objects, CDS views, OData V2/V4, RAP managed scenarios, SAP BTP ABAP Environment, BAPIs, IDocs, RFCs, REST APIs, JSON/XML, BAdIs, user exits, workflows, Smart Forms, Adobe Forms, ALV applications, debugging, and performance tuning. Recent delivery includes SAP S/4HANA 1909-to-2023 upgrade support, custom-code remediation, SPAU/SPDD adjustments, regression support, and post-upgrade stabilization. I have also built SAP-to-bank payment integrations, payment-status integrations, mobile-money integrations, e-invoicing API analysis, SAP Integration Suite/CPI flows, and Power BI reporting through CDS/OData services. I can support: - SAP S/4HANA ABAP development and enhancements - ECC-to-S/4HANA migration and custom-code adaptation - CDS views, analytical queries, and OData services - RAP managed scenarios and SAP BTP ABAP development - REST API, JSON/XML, BAPI, RFC, IDoc/ALE, and external integrations - Banking, payment-status, mobile-money, and e-invoicing integrations - FI, MM, SD, PP, QM, and HCM reports, forms, workflows, and support - Performance optimization, debugging, UAT support, and production issue resolution I work independently with business users, functional consultants, Basis teams, middleware teams, analytics teams, and external API providers. If you need an experienced SAP ABAP/S/4HANA consultant who can understand requirements, design the technical approach, develop clean code, test properly, and support the solution after go-live, I can help.

Hello, I am an SAP Certified Consultant specializing in MM/WM and PP, with comprehensive experience in SD, FI, and CO integration. With over 12 years of experience, I offer expert SAP training and solutions tailored to implementation and support projects. Whether you are: Looking for hands-on training in SAP modules, In need of SAP implementation guidance, or Stuck in any functional or technical issues within SAP, I am here to provide customized support to meet your needs. Feel free to reach out if you need professional assistance or training in SAP! Best regards, Saif Ullah SAP Certified Consultant

Experienced SAP/Finance Operations professional with a proven track record of 12 years in implementing, customizing, and configuring the FICO module 5 E2E Implementation. Successfully contributed to various projects across multiple industries, demonstrating expertise in gathering and analyzing business processes, creating comprehensive business blueprints, and mapping processes to SAP systems. Proficient in collecting and managing master data to ensure seamless integration. Skilled in following the SAP Activate methodology, I have completed three full life cycle implementations, covering all project phases including Prepare, Explore, Realize, Deploy & Run, and live Production Support. My extensive experience includes providing documentation at each stage of the implementation process, ensuring transparency and compliance with industry standards.