ERP Integration Services & API Gateway

ERP integration connects your ERP system to the other applications your business runs — CRM, e-commerce, payments, logistics, project management and custom apps — so data flows automatically between them instead of being re-keyed. Modern ERP system integration is API-based: ESS builds these connections through a secure Microsoft Azure API gateway with real-time, two-way synchronization, so a Salesforce order, a Square payment or a ProCore commitment lands in the ERP the moment it happens. Done right, integration eliminates duplicate entry, keeps every system working from the same numbers, and turns a collection of disconnected tools into one coherent stack. ESS delivers this for Epicor Prophet 21, IFS and the legacy systems around them.

ESS most often integrates Epicor Prophet 21 and IFS, where we have deep product and API expertise — including a native on-premises P21 API layer with 300+ P21 API endpoints, so no Epicor API module is required. We also bridge legacy systems such as Baan and Infor, keeping them consistent with the ERP during coexistence or a phased migration. From there, API-based ERP integration connects those systems to 20+ pre-built platforms — Salesforce, Square, ProCore, Ariba, Walmart and more — through our secure Azure gateway, and we build custom integrations for anything else with an API or data interface. Whatever the combination, the same real-time, two-way synchronization discipline applies.

Yes — ESS is a hands-on ERP systems integrator with 20+ years of integration experience. We own the full ERP system integration lifecycle: designing the architecture and data flows, building the API-based integration through our secure Azure gateway, testing it thoroughly in staging, deploying to production with minimal disruption, and monitoring and supporting it afterward. Because we're also an ERP consulting and implementation firm, we understand the business processes behind the data — not just the endpoints — so integrations reflect how orders, payments and projects actually move through your company. That combination of ERP depth and integration engineering is what generic middleware vendors can't offer. ESS scopes new integrations in a free consultation.

ESS ERP integrations run through a Microsoft Azure API gateway with enterprise-grade encryption, authentication and compliance standards — every connection between your ERP and outside platforms passes through that secured, monitored layer rather than exposing your system directly. For on-premises Prophet 21 installs that never purchased the Epicor API module, our native on-premises P21 API layer integrates securely against your system, applying the same API-based ERP integration architecture behind your firewall. Automated deployment keeps configurations consistent between staging and production, removing the manual missteps that create security gaps, and ESS monitors the integration after go-live as part of ongoing support. Security is designed into the ERP system integration from day one, not bolted on.

Yes — custom ERP integration is a core ESS service. Beyond our 20+ pre-built connectors, we build real-time, two-way integrations between your ERP and virtually any system with an API or data interface — niche industry platforms, homegrown applications, trading-partner feeds or legacy databases. As a hands-on ERP systems integrator, we handle the full cycle: architecture and data-flow design, development, staging tests, production deployment and ongoing monitoring, all through the same secure Azure gateway that carries our standard connectors. For Epicor Prophet 21, our native API layer with 300+ endpoints means API-based ERP integration works even without the Epicor API module. If your platform isn't on our list, that's a design conversation, not a dead end.