SharePoint Document Submission Form

The idea behind the sample

SharePoint Document Submission Form renders an interactive document-intake form inline in Microsoft 365 Copilot chat (via BaseCopilotComponent) and on modern SharePoint pages (via BaseClientSideWebPart). When a user asks to upload or submit a document, the declarative agent calls OpenDocumentSubmissionForm and opens the SPFx form inline.

The component verifies the target SharePoint document library (BaseTemplate 101), dynamically loads its required and optional editable columns via SharePoint REST, and uploads files up to 50 MB (direct upload up to 10 MB, chunked StartUpload/ContinueUpload/FinishUpload above 10 MB) followed by ValidateUpdateListItem under the signed-in user's delegated SharePoint permissions—without ever placing file bytes into the Copilot prompt or requesting Microsoft Graph admin consent.

Built-in security hardening locks siteUrl overrides to HTTPS on the active SharePoint Online tenant origin and enforces a strict file extension allowlist (.pdf, .docx, .xlsx, .pptx, .md, .png, .jpg).

Make it your own

Start with the author's setup instructions, explore the implementation, and adapt the pattern to your environment. Sample code stays in its original repository, together with its requirements, license and contribution history.

A closer look

Keep exploring

• Build agents for Microsoft Copilot — Extend Microsoft Copilot with declarative agents, plugins, and connectors to tailor Copilot to your organization's needs.
• Overview of the SharePoint Framework — The SharePoint Framework (SPFx) is a page and web part model that provides full support for client-side SharePoint development.
• SharePoint Framework v1.24 release notes — Release notes for SPFx 1.24 including Copilot UX components (BaseCopilotComponent) and Heft toolchain updates.

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