If ExtendSync for Google NetSuite loads with only the logo on a white background and does not fully open when you click an email, this is usually caused by Chrome blocking third-party cookies.
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This article explains why this happens and how to fix it.

ExtendSync relies on cookies to authenticate and load securely inside Gmail.
If third-party cookies are blocked in Google Chrome, the app cannot complete initialization.

You can fix this in one of two ways:

Choose the option that best fits your organization’s security preferences

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 > Cookies and other site data.

Step 4: In Customized Behaviour, under Sites that can always use cookies section, click Add.

Step 5: Return to Gmail and refresh the browser.

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 > Cookies and other site data.

Step 4: In the General Settings section, choose to Allow all cookies.

Step 5: Go back to Gmail and Refresh the browser.

After applying either option:

If the app still does not load after updating cookie settings:

Please include:

We’re happy to help you get ExtendSync loading correctly.