Visual Composer plugin can be purchased from the plugin site and then the plugin can be activated in the website by going into the “Visual Composer” and then click on to the “Product License” tab section, you will find the activation option
Now the plugin can be activated by clicking the “Activate Visual Composer” button. Thus by activating the plugin, the user can avail different feature advantages and also automatic plugin updates will also be maintained.
since the plugin comes part of the Rebuild theme as premium package plugin, you don’t need to activate the plugin but still you need your own licensed copy so you can use it without any issue. You can activate the plugin only if you have your own license. Please make sure you purchase the plugin from the plugin owner