There are several possible reasons. Your organisation may have switched it off, you may be signed in with a personal account instead of your work one, or your Microsoft 365 Copilot licence may not be applied yet. Work IQ comes with the full licence, so check which licence your account shows.
More in Microsoft Copilot
What is the Copilot sidebar in Word, Excel and PowerPoint Online?
It is Copilot sitting beside your document in the online app. With a Microsoft 365 Copilot licence it has full access to the app and can work on the open document. With basic Copilot Chat you use it as a protected chat, but it cannot work inside the document.
How do I open Copilot in the Edge sidebar?
Open the Microsoft Edge browser and click the Copilot icon in the top right corner, just under the close button. The side panel opens and can read the page you are on. On private or work sites it asks for permission first, and you can say no.
How do I get Copilot in Outlook?
Use the new Outlook, because classic Outlook does not have Copilot. The browser version is always the new Outlook, so open it there if you are unsure. Your licence then decides how much you get. A Copilot panel that looks different is usually an older build, since Microsoft rolls out updates to organisations at different times.