{"id":57177,"date":"2026-06-19T13:21:52","date_gmt":"2026-06-19T13:21:52","guid":{"rendered":"https:\/\/www.bridge-global.com\/blog\/?p=57177"},"modified":"2026-06-22T15:54:43","modified_gmt":"2026-06-22T15:54:43","slug":"built-an-erp-integration-platform","status":"publish","type":"post","link":"https:\/\/www.bridge-global.com\/blog\/built-an-erp-integration-platform\/","title":{"rendered":"How I Built a Multi-Tenant ERP Integration Platform in Record Time with Claude Code"},"content":{"rendered":"\n<p class=\"has-text-align-center\"><em>A real story about shipping complex, production-grade software faster than I thought possible<\/em><\/p>\n\n\n\n<p class=\"has-text-align-left\">Enterprise integrations are often underestimated.&nbsp;<\/p>\n\n\n\n<p>On paper, moving product, order, and customer data between systems sounds straightforward. In reality, every ERP, <a href=\"https:\/\/www.bridge-global.com\/ecommerce\">ecommerce<\/a> platform, and content system introduces its own APIs, data models, authentication mechanisms, and operational constraints. The challenge becomes even greater when the platform must support multiple customers while keeping their data completely isolated.&nbsp;<\/p>\n\n\n\n<p>A few months ago, I took on one of the most ambitious engineering projects of my career: building a multi-tenant SaaS ERP integration platform from scratch. The platform needed to connect Microsoft Dynamics 365 Business Central and Pengvin ERP with Litium Cloud Commerce and Finfo Media Central, while supporting real-time synchronization, secure tenant isolation, Azure deployment, monitoring, webhooks, scheduling, and comprehensive automated testing.&nbsp;<\/p>\n\n\n\n<p>Traditionally, an <a href=\"https:\/\/www.bridge-global.com\/blog\/erp-systems\/\">enterprise ERP<\/a> integration platform of this scale would require multiple engineers working over several months. I built most of it myself in a fraction of that time using Claude Code, and the experience fundamentally changed how I think about software engineering and AI-assisted development.&nbsp;<\/p>\n\n\n\n<p>The platform, called <a href=\"https:\/\/www.glanser.com\/\" target=\"_blank\" rel=\"noopener\">Glanser<\/a> Multiplatform ERP Integration, solves a deceptively difficult problem: synchronizing orders, products, prices, and customer data instantly between multiple enterprise systems. Anyone who has worked with ERP integrations knows how messy this can become. Every system has its own APIs, authentication models, data structures, and operational quirks. Add multi-tenancy into the mix, where every customer has separate configurations, credentials, and environments, and complexity grows rapidly.<\/p>\n\n\n\n<p>The final system included:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>15 separate .NET modules<\/li>\n\n\n\n<li>24 REST API controllers with more than 80+ endpoints<\/li>\n\n\n\n<li>Real-time webhook processing<\/li>\n\n\n\n<li>Multi-tenant credential isolation<\/li>\n\n\n\n<li>A Blazor Server management portal<\/li>\n\n\n\n<li>Azure infrastructure-as-code using Bicep<\/li>\n\n\n\n<li>159+ automated tests<\/li>\n\n\n\n<li>OAuth integrations with multiple external platforms<\/li>\n<\/ul>\n\n\n\n<p>This was not a prototype or proof of concept. It was a production-grade enterprise ERP integration platform designed to support multiple customers and business-critical workflows.&nbsp;<\/p>\n\n\n\n<p>What surprised me most was not that Claude Code could generate code. It was how effectively it accelerated the entire engineering process when paired with clear architectural thinking.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Using Claude Code as an Architectural Partner&nbsp;<\/strong><\/h2>\n\n\n\n<p>Before writing any implementation, I used Claude Code as a design partner.&nbsp;<\/p>\n\n\n\n<p>Instead of asking it to generate isolated code snippets, I had detailed conversations around scalability, tenant isolation, security, deployment strategy, synchronization models, and operational requirements. Those discussions helped shape the multi-tenant factory architecture that eventually became the backbone of the platform.&nbsp;<\/p>\n\n\n\n<p>The architecture ensured that:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Every request resolved its own tenant context<\/li>\n\n\n\n<li>Credentials stayed encrypted and isolated<\/li>\n\n\n\n<li>Services were tenant-scoped<\/li>\n\n\n\n<li>Database access remained tenant-safe by design<\/li>\n<\/ul>\n\n\n\n<p>Normally, these are discussions that happen during architecture workshops and whiteboard sessions involving multiple senior engineers. In this project, the design process moved considerably faster while still allowing architectural decisions to be challenged and refined.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Implementation Moved Faster Once the Foundation Was Clear&nbsp;<\/strong><\/h2>\n\n\n\n<p>Once the architecture was clear, implementation speed increased significantly.&nbsp;<\/p>\n\n\n\n<p>Claude Code generated large portions of the structural foundation, including API layers, Entity Framework Core entities, authentication middleware, service factories, and integration clients. More importantly, the generated code respected the architectural patterns and constraints already defined.<\/p>\n\n\n\n<p>One of the most interesting lessons from this project was how strongly the quality of the output depended on the quality of the context provided.<\/p>\n\n\n\n<p>When requirements were vague, outputs became generic. When architectural decisions, constraints, business rules, and implementation expectations were clearly defined, the generated code aligned surprisingly well with production requirements.<\/p>\n\n\n\n<p>In practice, this shifted part of the engineering effort away from implementation and toward architectural thinking. Defining boundaries, patterns, and expectations became just as important as writing code.<\/p>\n\n\n\n<p>Rather than replacing engineering expertise, AI amplified its value.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Building the Business Central Integration<\/strong><\/h2>\n\n\n\n<p>The Microsoft Dynamics 365 Business Central integration was among the earliest examples of this.<\/p>\n\n\n\n<p>Instead of producing generic boilerplate, the generated implementation already accounted for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>OAuth token refresh handling<\/li>\n\n\n\n<li>OData pagination<\/li>\n\n\n\n<li>Retry and resilience logic<\/li>\n\n\n\n<li>Multi-tenant credential resolution<\/li>\n<\/ul>\n\n\n\n<p>Because the broader system context had already been established, the generated code aligned closely with real-world enterprise requirements rather than requiring extensive rework.<\/p>\n\n\n\n<p>This was one of the moments where I started to see how AI-assisted software development could meaningfully reduce implementation effort while still supporting enterprise-grade quality.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Integrating with Pengvin ERP<\/strong><\/h2>\n\n\n\n<p>The <a href=\"https:\/\/www.pengvin.no\/erp-pengvin\" target=\"_blank\" rel=\"noopener\">Pengvin ERP<\/a> integration demonstrated the benefits even more clearly.<\/p>\n\n\n\n<p>Pengvin uses a hybrid integration model consisting of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>XML product imports over FTP<\/li>\n\n\n\n<li>REST APIs for outbound orders<\/li>\n\n\n\n<li>HMAC-secured webhooks<\/li>\n<\/ul>\n\n\n\n<p>Combining legacy enterprise workflows with modern APIs typically creates substantial implementation overhead. Features such as XML parsing, FTP polling, file archival, webhook validation, synchronization tracking, and retry handling often require days of repetitive engineering work.<\/p>\n\n\n\n<p>With the architectural patterns already established and Claude Code assisting with implementation, the first working version was completed in approximately a day.<\/p>\n\n\n\n<p>That level of acceleration would have been difficult to imagine only a few years ago.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Where AI Was Less Helpful<\/strong><\/h2>\n\n\n\n<p>Despite the acceleration, some of the most difficult problems were not coding problems at all.<\/p>\n\n\n\n<p>Understanding <a href=\"https:\/\/www.bridge-global.com\/services\/microsoft-development-services\">Microsoft <\/a>Dynamics 365 Business Central authentication flows, handling Pengvin FTP edge cases, managing Litium token refresh behavior, and designing reliable fallback synchronization strategies still required investigation, experimentation, and domain expertise.<\/p>\n\n\n\n<p>These challenges involved understanding how enterprise systems behave under real operational conditions rather than simply generating code.<\/p>\n\n\n\n<p>Similarly, architectural trade-offs remained a human responsibility.<\/p>\n\n\n\n<p>Decisions around synchronization reliability, failure recovery, tenant isolation, operational monitoring, and long-term maintainability could not be delegated to AI. Claude Code was highly effective at accelerating execution, but the architectural direction, domain understanding, and engineering judgment still came from experience.<\/p>\n\n\n\n<p>This distinction became one of the most important lessons of the project.<\/p>\n\n\n\n<p>AI reduced implementation effort significantly, but it did not reduce the need for engineering thinking.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Testing Became Part of the Development Process<\/strong><\/h2>\n\n\n\n<p>One of the most unexpected benefits was the impact on testing.<\/p>\n\n\n\n<p>In many software projects, testing gradually becomes a separate phase that competes with delivery deadlines. As pressure increases, test coverage often becomes something teams intend to improve later.<\/p>\n\n\n\n<p>With Claude Code, generating and refining tests became fast enough that testing naturally stayed inside the development cycle.<\/p>\n\n\n\n<p>The faster feedback loop made it easier to validate assumptions, catch regressions early, and maintain confidence while introducing new functionality.<\/p>\n\n\n\n<p>The platform ultimately shipped with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Integration tests<\/li>\n\n\n\n<li>Multi-tenant isolation tests<\/li>\n\n\n\n<li>Authentication tests<\/li>\n\n\n\n<li>API behavior tests<\/li>\n\n\n\n<li>Core service validation tests<\/li>\n<\/ul>\n\n\n\n<p>The result was not just faster delivery. It was a more disciplined development process than I would normally expect on a project moving at this pace.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The Areas Where Productivity Improved Most&nbsp;<\/h2>\n\n\n\n<p>Looking back, the biggest productivity gains came from three areas:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Structural Development<\/strong><\/h3>\n\n\n\n<p>Once architectural patterns were established, new integration modules could be created quickly while maintaining consistency across the platform.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Documentation and Infrastructure<\/strong><\/h3>\n\n\n\n<p>Documentation and operational assets stopped feeling like secondary tasks.<\/p>\n\n\n\n<p>Azure Bicep templates, OpenAPI specifications, deployment documentation, and operational guides became easier to maintain properly instead of being rushed or postponed until later phases of the project.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Debugging and Problem Solving<\/strong><\/h3>\n\n\n\n<p>Debugging cycles improved significantly.<\/p>\n\n\n\n<p>Instead of starting from scratch with logs and stack traces, I could describe failing behaviour conversationally, explore potential causes, and narrow down likely solutions much faster than traditional debugging workflows.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What This Project Changed for Me&nbsp;<\/strong><\/h2>\n\n\n\n<p>The most important lesson from this experience is that <strong><em>AI works best when paired with strong technical clarity<\/em><\/strong>. The quality of the outcome depends heavily on the quality of the context, constraints, and architectural direction provided to the AI.<\/p>\n\n\n\n<p>For me, this project changed the economics of software engineering.<\/p>\n\n\n\n<p>Implementation is no longer the bottleneck it once was. When repetitive development work requires less effort, engineers can spend more time on architecture, testing, operational quality, documentation, and long-term maintainability.<\/p>\n\n\n\n<p>The Glanser Multiplatform ERP Integration platform became a practical example of that shift.<\/p>\n\n\n\n<p>It is a production-grade Azure-based ERP integration platform connecting Microsoft Dynamics 365 Business Central, Pengvin ERP, Litium Cloud Commerce, and Finfo Media Central in a secure multi-tenant environment.<\/p>\n\n\n\n<p>What would traditionally require a larger engineering team over many months became achievable at a very different pace.<\/p>\n\n\n\n<p>AI did not eliminate the need for engineering expertise. If anything, it amplified the value of good architectural thinking.<\/p>\n\n\n\n<p>The most significant change was not that software became easier to build. It was that more time could be invested in making software better.<\/p>\n\n\n\n<p>One lesson we took from this project is that <strong><em>consistency matters as much as speed<\/em><\/strong>. As more teams adopt AI-assisted software development, having shared context, reusable workflows, and common engineering patterns becomes increasingly important.<\/p>\n\n\n\n<p>This is one of the reasons we are investing in Bridge AI Scaffold, an internal framework designed to standardize how teams work with agents, workflows, skills, and project context. The goal is not only to improve development efficiency, but also to make AI-assisted software development more consistent, scalable, and economically viable across engineering teams.<\/p>\n\n\n\n<p>Every organization&#8217;s integration landscape is different. Whether you&#8217;re connecting <a href=\"https:\/\/www.bridge-global.com\/services\/erp-crm\">ERP<\/a> systems, modernizing legacy applications, or exploring AI-assisted software development, success depends on thoughtful architecture and practical execution.<\/p>\n\n\n\n<p>Looking for an experienced engineering team? <a href=\"https:\/\/www.bridge-global.com\/contact-us\">Contact us to discuss your project<\/a>.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>A real story about shipping complex, production-grade software faster than I thought possible Enterprise integrations are often underestimated.&nbsp; On paper, moving product, order, and customer data between systems sounds straightforward. In reality, every ERP, ecommerce platform, and content system introduces &hellip;<!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":82,"featured_media":57178,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[542,1704,1705,1706,316],"class_list":["post-57177","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-erp","tag-software-solutions","tag-erp-integration","tag-claude-code","tag-erp-integration-platform","tag-software-development"],"featured_image_src":"https:\/\/www.bridge-global.com\/blog\/wp-content\/uploads\/2026\/06\/How-I-Built-an-ERP-Integration-Platform-with-Claude-Code.jpeg","author_info":{"display_name":"Vishnu KJ","author_link":"https:\/\/www.bridge-global.com\/blog\/author\/vishnu-kj\/"},"_links":{"self":[{"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/posts\/57177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/users\/82"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/comments?post=57177"}],"version-history":[{"count":2,"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/posts\/57177\/revisions"}],"predecessor-version":[{"id":57204,"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/posts\/57177\/revisions\/57204"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/media\/57178"}],"wp:attachment":[{"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/media?parent=57177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/categories?post=57177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bridge-global.com\/blog\/wp-json\/wp\/v2\/tags?post=57177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}