Addon Modules Management
Addon modules allow developers to extend the functionality of WHMCS further including new pages in the admin or client areas.
- You can enable, disable, and manage addons at Configuration () > System Settings > Addon Modules or, prior to WHMCS 8.0, Setup > Addon Modules.
- You can find addons to download and install in the WHMCS Marketplace.
- For more information about developing your own addon modules, see our developer documentation.
Contents
Uploading and Installing Addons
Before you can install a new addon, you must upload it to your WHMCS installation. To do this, unzip and upload the addon files to your installation's /modules/addons directory.
After you successfully upload the addon files, the addon will appear in the list of addon modules at Configuration () > System Settings > Addon Modules or, prior to WHMCS 8.0, Setup > Addon Modules.
For information about activating, configuring, and removing addon modules, see Addon Modules.
Troubleshooting
Oops Error
An Oops Error Message when you view the list of addon modules can be caused by an incompatible module. For help to resolve this error, see Troubleshooting A Blank Page Oops Error Message.
The error will reference the addon module that is causing the failure. Once you know the affected addon, you can remove the addon files from /modules/addons or obtain an updated version of the addon from the developer.
Ensure that you have selected the administrator roles during addon configuration.