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Ebenstead / NetSuite Intelligence

RESTlet and integration authentication readiness

NetSuite 2027.1 changes NLAuth support, new TBA integrations and PKCE requirements for new OAuth authorization-code integrations.

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IntegrationsRequired migration
Why it matters

An authentication change can interrupt an otherwise working integration.

First step

List how each integration signs in and ask vendors about their transition plans.

Suggested owner

Integration owner

Who should check?

Integration owners using NLAuth, planning new TBA connections, or creating OAuth authorization-code integrations.

Published milestones

  1. 2027.1NLAuth integrations stop, subject to the documented exception; new TBA integrations are restricted.
  2. 2027.1PKCE is required for new authorization-code integrations.
  3. 2028.2 — tentativeOracle’s target for final TBA end of support, not a fixed deadline.

Check your Oracle account notice before scheduling an update.

What to do next

  • Identify exact authentication flows rather than infer them from application names.
  • Select an appropriate OAuth design and coordinate the external application.
  • Test permissions, token lifecycle and business transactions before cutover.

What we’ll review

Authentication methods and grant types for each integration, with secrets excluded from the inventory.

Sources and updates

Oracle documentation

Authentication release notes ↗Oracle document date: 2026-09-21 · Source checked:
Preparing for TBA end of support ↗Oracle publication/update date not stated on this page. · Source checked:
Before the next deadline

How this change developed

The HMAC-SHA1 authentication transition
  • NetSuite release 2023.1 — Support ended
From SuiteSignOn to modern sign-on and record imports
  • — Replacement capability delivered
  • — Supporting bundles released
  • NetSuite release 2025.1 — Support ended

Earlier changes to this product

Explore the full platform archive →

Update history

  • 2026-10-17 — Added this guide using existing Oracle documentation.
  • 2026-10-17 — Added the documented SuiteAnalytics Connect ODBC/JDBC exclusion to the tentative final TBA retirement guidance.

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Topic: Authentication compatibility review

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