How to Apply Sensitivity Labels to OneDrive Documents in OneDrive for Business

You need to protect sensitive files stored in OneDrive for Business by applying sensitivity labels, but the options may not appear in your document properties or toolbar. Sensitivity labels are set by your Microsoft 365 administrator and enforce classification, encryption, and usage restrictions on files. This article explains how to locate the sensitivity label button, apply a label to a document, and verify that the label is active. You will also learn what to do if the label option is missing.

What Are Sensitivity Labels and How Do They Work in OneDrive

Sensitivity labels are classification markers that your organization’s administrator configures in the Microsoft Purview compliance portal. Each label can enforce encryption, apply a visual header or footer, and restrict actions such as printing or copying. When you apply a label to a document stored in OneDrive, the label travels with the file even if it is downloaded, shared, or opened in the desktop version of Office.

Labels appear in the OneDrive web app only if your administrator has published a label policy that includes you or a security group you belong to. The labels are visible in the document ribbon under the Home tab, in the File > Info menu, and in the document properties pane. You can apply only one label per document at a time. Changing or removing a label requires the same permissions that the label policy defines.

Prerequisites for Applying Sensitivity Labels

Before you can apply a sensitivity label, the following conditions must be met:

• Your Microsoft 365 subscription includes Azure Information Protection or Microsoft 365 E3/E5 licenses.
• Your administrator has created and published sensitivity labels in the Microsoft Purview compliance portal.
• You are signed in to OneDrive with your work or school account.
• You are using a supported browser: Microsoft Edge, Google Chrome, or Mozilla Firefox.
• The document is in a supported Office format: .docx, .xlsx, .pptx, or .pdf.

Steps to Apply a Sensitivity Label to a OneDrive Document

Method 1: Using the Home Tab in the Web App

1. Open the document in the OneDrive web app
   Go to onedrive.com and sign in with your work or school account. Navigate to the file you want to label and click its name. The document opens in the browser-based version of Word, Excel, or PowerPoint.
2. Locate the Sensitivity button
   On the ribbon, click the Home tab. In the far-right section of the ribbon, look for a button labeled Sensitivity. The button shows a shield icon and the currently applied label name, if any.
3. Select a label
   Click the Sensitivity button to open the dropdown list of available labels. Click the label you want to apply, such as Confidential or Internal. The label is applied immediately.
4. Verify the label
   The label name appears on the Sensitivity button. You can also check the document title bar; the label name may appear in parentheses. If the label enforces encryption, a message may briefly appear stating that the document is being protected.

Method 2: Using the File Menu

1. Open the document and click File
   With the document open in the web app, click File in the top-left corner to open the backstage view.
2. Open the Info page
   In the File menu, click Info if it is not already selected. The Info page shows document properties and protection options.
3. Use the Sensitivity dropdown
   Look for the Sensitivity section on the right side of the Info page. Click the dropdown arrow next to the current label name. Select the label you want to apply.
4. Return to the document
   Click the back arrow or press Escape to return to the document. The label is now active.

Method 3: Applying a Label to a PDF

1. Open the PDF in OneDrive
   Click the PDF file name in OneDrive. The PDF opens in the built-in PDF viewer.
2. Use the document properties pane
   Right-click the PDF and select Details or click the information icon in the toolbar. In the properties pane, locate the Sensitivity field.
3. Select a label
   Click the Sensitivity field and choose a label from the dropdown. The label is applied to the PDF file metadata.

Common Issues When Applying Sensitivity Labels

The Sensitivity Button Does Not Appear

If you do not see the Sensitivity button in the Home tab or the File menu, the most likely cause is that no label policy has been assigned to your account. Contact your Microsoft 365 administrator and ask them to verify that a sensitivity label policy includes you. The administrator can check this in the Microsoft Purview compliance portal under Information Protection > Label policies. Also confirm that you are using a supported browser and that cookies are enabled.

The Label Is Grayed Out or Cannot Be Changed

A label may appear dimmed if the current label is parent-level and a sub-label must be selected instead. Click the Sensitivity button and look for expandable options under the parent label. If you cannot change a label at all, the label policy may have set the label as mandatory or locked. Only an administrator can modify mandatory label settings.

Label Does Not Apply to the File

If you click a label but nothing happens, close the document and reopen it. The OneDrive web app may need to refresh its session. If the problem persists, clear your browser cache and sign in again. In rare cases, the document may be checked out or locked by another user. Ensure the file is not open in the desktop version of Office with unsaved changes.

Sensitivity Labels in OneDrive vs Desktop Office: Key Differences

Item	OneDrive Web App	Desktop Office Apps
Label location	Home tab > Sensitivity button or File > Info > Sensitivity dropdown	Home tab > Sensitivity button, or right-click file in File Explorer > Properties > Sensitivity
Supported file types	.docx, .xlsx, .pptx, .pdf	.docx, .xlsx, .pptx, .pdf, plus .doc, .xls, .ppt with compatible add-ins
Encryption behavior	Label enforces encryption immediately; file must be saved to apply	Label enforces encryption when file is saved; user is prompted to save
Offline label application	Not available; requires internet connection	Available in offline mode; label syncs when online

You can now apply sensitivity labels to your OneDrive documents using the web app ribbon or the File menu. If the Sensitivity button is missing, ask your administrator to assign a label policy to your account. For files that require consistent protection, consider setting a default label in the desktop Office apps so every new document receives a baseline classification.