Are you selling digital products via WooCommerce and want your orders to be completed automatically? Or just want to complete your orders automatically to take out the hassle of you doing it yourself? Then all you need to do is install this simple plugin.
Go to Plugins > Add New and type in WooCommerce Autocomplete Orders.
Select Install Now and Activate the plugin.
Once installed you will find the settings for the plugin under WooCommerce > Settings and in the tab Woo Extra Options.
The dropdown will allow you to set your orders to autocomplete on paid virtual products, all paid products and all products.