The CloudExtend Files tab in NetSuite is usually visible on Customer and Contact records.

If you’d like this tab to appear on other record types, refer to this article: Add or Remove CloudExtend Files Tab to NetSuite Records.

If you open the CloudExtend Files tab and see a blank white screen instead of the Get Started button, this is most likely due to browser cookies being blocked.

Follow the steps below to update your browser settings and resolve the issue.

Symptoms

You may see one or more of the following:

CloudExtend Files tab opens but shows a white blank page
The Get Started button does not appear
No error message is shown

Why This Happens

CloudExtend Files relies on secure third-party cookies to load the file picker and authenticate with Microsoft 365 services.

If third-party cookies are blocked, the Files tab cannot initialize and appears blank.

Resolution

Update your browser settings to allow third-party cookies for CloudExtend.

Depending on your browser, use the instructions below to allow third-party cookies for CloudExtend.

For Chrome Users

If you want to keep the Block third-party cookies and use ExtendSync, do the following:

Step 1: In your Chrome browser, click the three dots in the upper right corner.

Step 2: Go to Settings.

Step 3: Hit Privacy and Security> Third-party cookies.

Step 4: Select Block third-party cookies

Add https://odns.cloudextend.app in the Sites allowed to use third-party cookies section.

Step 5: Refresh the browser and check if the CloudExtend files button is showing.

For Firefox Users

Step 1: In Firefox, go to Menu > Settings > Privacy & Security > Cookies and Site Data.

Step 2: Click Manage Exceptions.

Step 3: Copy and paste https://onedrive-picker-prod-5udx5bopke.cloudextendapps.io/

Step 4: Click Allow then Save Changes.

Step 5: Close Firefox and re-launch.

✅ Verify the Fix

After updating your browser settings:

Open a Customer or Contact record in NetSuite
Click the CloudExtend Files tab
Confirm the Get Started button or file picker loads correctly

Additional Notes

Cookie settings are applied per browser and per profile.
On IT-managed devices, these settings may be locked—contact your IT team if you cannot change them.
Clearing browser cookies after this change may require re-adding the allowlist entry.