
Scenario
You have deployed the Exclaimer Outlook Add-in, and you notice that your signatures are not showing on Outlook desktop, but they are showing on Outlook Web without any issue.
Reason
The Exclaimer Outlook Add-in feature uses a connected service which is only available when the option for Optional connected experiences is enabled in Outlook.

Resolution
To resolve this issue:
Step 1: Check the Exclaimer Outlook Add-in Pre-requisites.
Step 2: Make sure the Optional connected experiences option is enabled in Outlook.
To enable the Optional connected experiences option in Outlook:
- Log in to the Outlook Desktop App.
- Select File from the ribbon bar.
- Select Options from the menu sidebar.
The Outlook Options window is displayed.
- Select Trust Center then select Trust Center Settings....
- Select Privacy Options, then select Privacy Settings...
- Check the Turn on optional connected experiences option.
- Select OK to save the changes.
If you are unsure and need assistance
Run our diagnostic PowerShell script to help the Support team check your Outlook and Exclaimer Add-In setup. The script safely collects technical details, such as Outlook version, Add-In status, and connectivity without accessing personal data or emails, enabling faster troubleshooting.
To run the script:
- Launch Windows PowerShell. Administrator privileges are optional but recommended.
Copy and paste the following command into PowerShell:
- Follow the on-screen prompts.
When complete, a report named AddInChecks.html will be generated.
- Attach the generated file to your Support ticket to allow the Support team to review your configuration.

