2026.1 Release Notes Update (May 4): MCP Interactive Apps, Client Script Limits, Agent Skills

Oracle updated the 2026.1 Release Notes PDF (now v12) on May 4, 2026. This revision touches MCP/AI tooling, SuiteScript guardrails, agent skills, banking SuiteApps, and several help-topic clarifications. Below is a developer-focused breakdown of what actually changed.

MCP & AI Connector Service

Interactive MCP Apps in Custom Tools

Custom Tools (the SuiteScript 2.1 Custom Tool script type) now support building MCP Apps with interactive UI. A new help topic, Building MCP Apps (Interactive UI) with Custom Tools, has been added under the SuiteScript 2.1 Custom Tool Script Type documentation. This means custom tool scripts can render interactive prompts and selectors rather than being limited to text-in/text-out flows.

Custom Tool Script Files Are Now Read-Only in the File Cabinet

Script files associated with custom tools can no longer be edited directly in the File Cabinet. This is a behavioral change — if your workflow involves editing custom tool scripts via the File Cabinet UI or SuiteScript file operations, you will need to adjust. The notes do not specify the alternative editing path (likely SDF or the custom tool record itself), so verify in your environment.

Report Tool Enhancements (MCP Standard Tools SuiteApp)

The ns_runReport tool now accepts additional properties:

• accountingContext
• book
• book2
• nexusId
• periodEndTransactionReportMode
• range
• taxCashBasisMode

Three new report-helper tools were added: ns_getAccountingBooks, ns_getAccountingContexts, and ns_getNexusIds. Two new MCP Apps were also documented: Record Selector MCP App and Report Filters MCP App.

NetSuite AI Connector Service Companion SuiteApp

A new companion SuiteApp was added. The release notes do not describe its functionality in detail beyond its existence — check the SuiteApp bundle listing for prerequisites and features.

SuiteScript: Client Script Deployment Performance Warning

Oracle updated the help topics for Setting General SuiteScript and Advanced Preferences and the Client Scripts and Localized Client Scripts Subtabs on the Scripted Records Page to explicitly warn about the performance impact of deploying too many client scripts on a single record. This applies when the preference Remove Client Script Deployment Limit per Record is enabled.

If you have enabled this preference and are stacking multiple client script deployments on high-traffic records, Oracle is now flagging this as a known performance concern. Review your deployment counts on records like salesorder, customer, and invoice.

SuiteCloud Agent Skills

Two new skills were added:

• netsuite-sdf-project-documentation — helps generate or reference SDF project documentation
• netsuite-suitescript-records-reference — provides records reference context for SuiteScript development

A new help topic was added for using SuiteCloud Agent Skills with Cline and SuiteCloud Developer Assistant, expanding the supported IDE/agent tooling surface.

Banking SuiteApps

Bank Feeds: Standardized Error Codes

Bank Feeds imports now return standardized error codes. The help topic Handling Bank Feeds Data Import and Connection Errors was updated. If you have custom error handling or monitoring around bank-feed imports, update your logic to match the new code set.

Bank Feeds: End of Support for Australia-based Banks

Australia-based bank connections in Bank Feeds are reaching end of support. If you have Australian bank feeds configured, plan a migration to an alternative integration path.

Enriched Bank Data for Transaction Matching

Documentation now clarifies when enrichment-based matching is applied, including ambiguity conditions and date constraints. No API change, but the matching behavior is now better defined — review if you rely on enriched data matching logic.

Intelligent Payment Automation 3.1.0

A new version of the Intelligent Payment Automation SuiteApp (v3.1.0) was documented. Check the bundle release notes for specific changes.

NetSuite Connector (Shopify)

• Catalog and Price List Sync for Shopify B2B — new sync capability for B2B storefronts
• AI-Enhanced Error Messages — the Shopify Connector now provides AI-enhanced error messages for easier troubleshooting

Inventory Management

• Purchase order creation from the Order Items page now has clarified behavior around which standard purchase order form is used.
• WMS topics updated for the SOAP 2025.2 migration — if you use the WMS Printer Driver or Carrier Integrator, update your configuration files per the revised docs.

Localization: Brazil

• NFS-e Nacional standard added to predefined e-document validation files.
• New Brazil Deferred Revenue Recognition SuiteApp and help topics added, with updates to Brazil Account Setup and Brazil-specific SuiteApps pages.
• New Tax Benefit Code parameter type added for Brazil.

What to Do

1. Custom tool developers: If you edit custom tool script files in the File Cabinet, test your workflow — those files are now read-only there. Migrate to SDF-based deployment or the custom tool record UI.
2. Client script heavy records: Audit records where you have enabled Remove Client Script Deployment Limit per Record. Count deployments per record and profile page-load performance on high-traffic records.
3. MCP report integrations: If you call ns_runReport, review the new filter properties (accountingContext, book, nexusId, etc.) and the three new helper tools for building filter values.
4. Bank Feeds consumers: Update any custom error-handling logic to use the new standardized error codes. If you have Australian bank connections, start planning migration.
5. WMS integrations: If you use the Carrier Integrator or WMS Printer Driver, update your configuration file for the SOAP 2025.2 migration per the revised help topics.
6. Shopify B2B users: Review the new Catalog and Price List Sync documentation if you manage B2B pricing through Shopify.
7. Brazil localization: If you operate in Brazil, review the new Deferred Revenue Recognition SuiteApp and the NFS-e Nacional validation files.