Microsoft Syntex — content AI for SharePoint

Microsoft Syntex — also marketed as SharePoint Premium — is Microsoft's content AI service for SharePoint and Microsoft 365 content. It adds capabilities for understanding, classifying, extracting, and processing documents at scale, plus content assembly, eSignature, and advanced search. Useful when your organisation has high-volume document processes (contracts, invoices, claims, forms) that have historically been manual.

What Syntex provides

Document understanding

Train AI models to classify documents and extract specific fields. Two flavours:

• Unstructured document processing — for text-heavy documents (contracts, policies, articles) where layout varies. Uses example-based training with Power Automate / AI Builder.
• Structured/freeform document processing — for forms (invoices, receipts, applications) with consistent field positions. Uses AI Builder form processor under the hood.
• Prebuilt models — Microsoft ships models for common document types (invoices, receipts, contracts, business cards) ready to use.

Once trained and applied to a SharePoint library, documents arriving in the library are automatically classified and have their extracted fields written into SharePoint columns.

Content assembly

Generate documents from templates and structured data. Use cases: contract generation from a Dataverse customer record, proposal generation from a SharePoint list, letter generation from a CRM. The author defines a Word template with placeholders; Syntex fills them in from chosen data sources.

Content query

AI-aware search across the tenant, with semantic ranking and natural-language understanding. Surfaced as an enhanced experience in Microsoft Search.

eSignature

Native digital signing in Microsoft 365 — request signatures on PDF documents, collect them, file the signed artefact back in SharePoint. Alternative to DocuSign / Adobe Sign for in-tenant signing workflows.

Content processing

Pay-as-you-go automated processing — image tagging, OCR, language detection, taxonomy management — applied at scale to content in SharePoint and OneDrive.

Content compliance

Apply retention labels and sensitivity labels automatically based on AI-driven content classification.

Where it fits

Syntex is most valuable when:

• High-volume document processes consume significant manual effort.
• Documents have structured information worth extracting and indexing.
• Compliance drives consistent classification of large content volumes.
• Existing third-party content automation tools are due for replacement.

It's less useful when:

• Document volumes are low — manual handling is fine.
• Existing systems already handle the workflow well.
• Content is too variable for ML models to perform reliably.

Licensing

Syntex has shifted to a pay-as-you-go model billed by transaction volume:

• Document understanding transactions per file processed.
• Content assembly per document generated.
• eSignature per signature request.
• Image / video processing per asset.

Some capabilities can also be licensed per-user (heavier monthly use). Pricing has changed several times — check the current Syntex pricing page when planning.

Relationship to Microsoft 365 Copilot

Syntex and Microsoft 365 Copilot are complementary. Copilot is conversational AI grounded on user content; Syntex is content-side AI that classifies, extracts, and processes documents systematically. Syntex makes content machine-understandable, which makes Copilot more accurate when reasoning over that content.

For organisations rolling out Copilot at scale, Syntex is part of the data-quality investment that pays back in Copilot quality.