KB: Altium CoDesigner Panel Missing in Autodesk Fusion 360

Created: August 27, 2025 | Updated: August 28, 2025

Altium Designer

After successfully installing Altium CoDesigner for Autodesk Fusion 360, users may find that the CoDesigner panel is missing from the Add-Ins section. Although the plugin appears in the Windows Programs list, it may not be properly integrated due to installation permissions, user-specific access issues, or workspace context settings. This article outlines the symptoms, causes, and step-by-step recovery procedures.

Solution Details

The Altium CoDesigner panel is missing from the Add-Ins menu in Fusion 360, even though the plugin is listed under Windows Programs. This suggests that the installation may not have completed correctly or the add-in files are not accessible to the current user.

Root Causes of Panel Invisibility

This issue typically occurs due to one or more of the following reasons:

The Altium CoDesigner installation encountered errors.
The plugin was installed using administrator privileges, placing the add-in files in the admin user's directory.
Read/write access restrictions are preventing Fusion 360 from accessing the add-in files.

Recommended Actions to Restore the Panel

To restore the missing panel, try one of the following:

Run Fusion 360 with administrator rights to check if the panel appears.
Manually copy the add-in folder from the admin user directory to the current user’s directory.
Reinstall Altium CoDesigner using the current user account without admin elevation.

Step-by-Step Recovery Procedure for Manual Copy

1. Verify Installation
Open Control Panel » Programs and Features and confirm that Altium CoDesigner is listed.
2. Check Add-In Folder Location
Navigate to: C:\Users\Administrator\AppData\Roaming\Autodesk\Autodesk Fusion 360\API\AddIns\Altium.Designer.Mechatronic.FusionAddIn.HostLib3. Copy Add-In to Current User
Copy the entire Altium.Designer.Mechatronic.FusionAddIn.HostLib folder and paste it into: C:\Users\<username>\AppData\Roaming\Autodesk\Autodesk Fusion 360\API\AddIns\4. Restart Fusion 360
Launch Fusion 360 and check if the Altium CoDesigner panel appears under Add-Ins.

Additional Notes

Ensure Fusion 360 is closed before copying files between user directories.
If the issue persists, reinstall CoDesigner using the current user account without admin elevation.
For full installation and configuration steps, refer to Preparing Autodesk Fusion 360 for CoDesign.