> ## Documentation Index > Fetch the complete documentation index at: https://docs.cassidyai.com/llms.txt > Use this file to discover all available pages before exploring further. # Verify documents > Review and verify documents in your Knowledge Base to ensure Agents use accurate information. Flag outdated documents in your [Knowledge Base](/knowledge-base/overview) and deprecate them so your [Agents](/agents/overview) and [Workflows](/workflows/overview) always reference accurate, up-to-date information. Document verification is currently available on Enterprise plans. ## Flag a document as potentially outdated Any team member can flag a document they suspect is outdated. There are three places to flag documents: **From chat** — When an Agent cites a source, click the dropdown on the reference and select **Flag as potentially outdated**. Agent chat message with cited source and Flag as potentially outdated dropdown option **From the Knowledge Base list** — Click the ellipsis (three dots) next to a document and select **Flag as potentially outdated**. Knowledge Base document list with ellipsis menu showing Flag as potentially outdated option **From the document viewer** — Open the document, click the settings icon, and select **Flag as potentially outdated**. If you own the collection, you can also **Deprecate** or remove flags directly from this menu. Document viewer settings menu showing Rename, Download, Delete, and Deprecate options You can optionally include a comment explaining why you're flagging the document. ## Review flagged documents Collection owners can review and resolve flags from the collection homepage. Open **Knowledge Base** in the sidebar and select the collection. Click **Documents Flagged for Review** to see all pending flags. Collection homepage with Documents Flagged for Review link highlighted For each flagged document, choose: * **Deprecate** — The document is removed from search results and won't be used by Agents or Workflows going forward. You can optionally add a reason. * **Ignore** — Removes the flag and keeps the document active Flagged document view with Deprecate and Ignore options visible ## Identify and manage deprecated documents Deprecated documents display a **Deprecated** badge in the Knowledge Base. They are excluded from search results and won't be referenced by [Agents](/agents/overview) or [Workflows](/workflows/overview). You can undeprecate a document if it becomes relevant again: click the ellipsis next to the document and select **Undeprecate**. Knowledge Base list showing document with Deprecated badge Ellipsis menu showing Undeprecate option for a deprecated document ## Review flagged items as an admin Organization admins can review all flagged items across collections they own from **Settings** → **Verification & Review**. Settings page with Verification and Review section showing flagged items across collections ## Next steps Upload documents, import websites, and connect integrations. Structure your content and control who can access it.