1. Navigate to System Definition > Plugins .
2. Find and click the plugin name.
3. On the System Plugin form, review the plugin details and then click the Activate/Upgrade related link.If the plugin depends on other plugins, these plugins are listed along withtheir activation status.If the plugin has optional features that depend on other plugins, thoseplugins are listed under Some files will not be loaded because these plugins are inactive . The optional features are notinstalled until the listed plugins are installed (before or after theinstallation of the current plugin).
4. (Optional)If available, select the Load demo data check box.Some plugins include demo data—Sample records that are designed to illustrateplugin features for common use cases. Loading demo data is a good practicewhen you first activate the plugin on a development or test instance.You can also load demo data after the plugin is activated by clicking the Load Demo Data Only related link on the SystemPlugin form.
5. Click Activate .