Add-in not showing in Outlook

TemplateManager365 is installed but does not appear in Outlook

If you installed or deployed TemplateManager365 and cannot find it in Outlook, this walks through where it should appear in each version and the checks that resolve it.

The add-in installs successfully but never appears — a common situation, and almost always one of the checks below.

It only appears while writing an email

TemplateManager365 is a compose add-in. Start a new email first: it will not appear while you are reading a message, and it does not appear in Calendar, Contacts or Tasks.

Where to look in each version of Outlook

New Outlook for Windows, and Outlook on the web

  1. Start a new email.
  2. In the message window, open the Apps menu.
  3. Select TemplateManager365.

You can pin it there so it is one click away next time.

Classic Outlook for Windows

  1. Start a new email.
  2. Look for the TemplateManager365 button on the ribbon of the message window.
  3. If the ribbon is customised, the button may be hidden — check File → Options → Customize Ribbon.

Outlook for Mac

Start a new email and look for TemplateManager365 on the message ribbon or in the Apps menu, depending on your version.

If you installed it yourself

  1. Check the account. Outlook can be signed in to more than one account. The add-in appears only for the Microsoft 365 work or school account it was installed for.
  2. Confirm the install. Open the add-in management page and check TemplateManager365 is listed under My add-ins.
  3. Restart Outlook, or reload the browser tab if you are on the web. Newly installed add-ins do not always appear immediately.
  4. Compare with Outlook on the web. If it appears there but not in your desktop Outlook, the problem is the desktop client rather than the installation.

If your administrator deployed it

  1. Check you are assigned. Centrally deployed add-ins appear only for the users or groups included in the deployment.
  2. Allow time to propagate. Microsoft can take up to 24 hours, sometimes longer, before a newly deployed add-in appears for everyone.
  3. Confirm the tenant. If you have accounts in more than one tenant, make sure you are composing from the one the add-in was deployed to.

If deployment itself failed, see Integrated Apps Deployment “Accept permissions failed”.

When it will never appear

These are supported-scenario limits rather than faults, and each of them produces exactly this symptom:

  • You are signed in with a personal Microsoft account rather than a work or school account.
  • You are composing from a shared or delegated mailbox.
  • You are creating a meeting or appointment rather than an email.
  • You are using Outlook for iOS or Android.
  • You are using an older perpetual version of Outlook, or a mailbox on on-premises Exchange.

All of these are covered in Supported Outlook versions and accounts.

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