NetSuite SOAP Deprecation 2026: A Practical Guide to Migrating to REST APIs
NetSuite is ending support for SOAP web services in 2026. If your integrations still rely on SOAP, you risk serious disruptions to your ERP and eCommerce workflows. Migrating to REST APIs takes careful planning and expert execution to keep your systems running smoothly. This guide walks you through the critical steps to modernize your NetSuite integrations and secure business continuity before the 2026.1 cutoff.
Understanding the 2026 SOAP Deprecation
As the countdown to 2026 begins, businesses relying on NetSuite’s SOAP web services face a pressing deadline. The deprecation of SOAP services is not just a technical update; it represents a significant shift that requires immediate action to secure your operational future.

Timeline and Risks of Inaction
The clock is ticking towards the 2026.1 cutoff, and the implications of ignoring this transition are severe. SOAP services will no longer be supported, leading to potential breakdowns in your integrations. This could disrupt essential functions such as finance, supply chain, and customer management. The longer you wait, the higher the risk of encountering system outages and failed automations. Starting the migration now ensures you have ample time to address unexpected challenges and avoid costly downtime.
Impacts on NetSuite Clients
For businesses using NetSuite, this change is monumental. Many companies rely on SOAP for custom connectors and middleware. A sudden cessation of support can lead to workflow disruptions and data loss. By transitioning to REST APIs, you not only avoid these risks but also embrace a more efficient and scalable integration method. Most people think they can delay, but starting early gives you a competitive edge. Taking proactive steps now means smoother operations and a future-proof system.
Migrating to REST APIs
Transitioning from SOAP to REST APIs involves a series of strategic steps. This is not just a switch but an opportunity to enhance your integration framework, ensuring better performance and reliability.

Key Steps for a Successful Transition
Embarking on this migration journey requires a comprehensive plan. Begin by auditing your existing SOAP integrations to pinpoint what needs updating. Next, redefine endpoints and payloads for REST compatibility. Rebuilding authentication processes using OAuth or token-based methods is critical to maintaining secure connections. Finally, ensure thorough testing of workflows to catch any issues early. This systematic approach guarantees a smooth transition, minimizing disruptions to your daily operations.
Utilizing SuiteScript and OAuth
SuiteScript and OAuth play pivotal roles in modernizing your integrations. SuiteScript 2.x provides a robust foundation for building RESTlets, enabling you to handle complex data interactions efficiently. OAuth 2.0, meanwhile, enhances security by offering token-based authentication. This means safer data exchanges and reduced vulnerability to breaches. By leveraging these tools, you not only comply with NetSuite’s new standards but also optimize your system’s performance. Here’s the key insight: adopting these technologies now sets you up for long-term success.
Partnering with AOTT for Success
Navigating this transition alone can be daunting. Partnering with experts ensures you stay ahead of potential pitfalls and capitalize on the benefits of REST APIs.

Why Choose AOTT for Migration
AOTT stands out as a trusted partner in this transition. Our team combines deep NetSuite expertise with a proven track record in successful migrations. We focus on client-specific needs, ensuring tailored solutions that align with your business goals. Most agencies offer one-size-fits-all services, but at AOTT, we prioritize personalization. Our commitment to long-term partnerships means we’re with you every step of the way, from initial audits to post-migration support.
Free Migration Audit and Roadmap
Understanding your current setup is the first step to a successful migration. AOTT offers a free migration audit to assess your existing integrations. This comprehensive review identifies potential challenges and opportunities for enhancement. Following the audit, we provide a detailed roadmap outlining each phase of your transition. This plan includes timelines, resource allocation, and risk mitigation strategies. By engaging with AOTT, you ensure a seamless transition to REST APIs, safeguarding your business continuity and setting the stage for future growth.
In conclusion, the deprecation of SOAP services by NetSuite is an urgent call to action. By starting your migration to REST APIs now, you protect your operations from disruptions and unlock new efficiencies. AOTT is here to guide you through this critical transition, ensuring your systems remain robust and your business thrives.