Login to your WordPress Portal from wp-admin and navigate to Plugins module. Here you can see the Add New Button. Click on ‘Add New’ button which will redirect you to Add Plugins Page.
Click on ‘Upload Plugin’ button. Browse the WP-Plugin-Package zip and Install the Plugin.
Go to Installed Plugins screen. Here, you can see SugarCRM Customer Portal plugin was successfully installed. But still it’s Inactive.
Click on ‘Activate’ to activate this newly installed plugin.