The license settings for all Wholesale Suite plugins can be found on Settings > WWS License. This page houses the three Wholesale Suite plugins where you can activate the licenses of each plugin named WooCommerce Wholesale Prices Premium, WooCommerce Wholesale Order Form and WooCommerce Wholesale Lead Capture.
If you』re having trouble switching to another tab and getting error 404 (Page not Found) this means that you』ve installed the Wholesale Suite plugins in a different root folder than the Site Address URL (WordPress > Settings > General).
In order to fix this, you』ll need to follow Method II (With URL change) from this WordPress guide about subdirectory:
Giving WordPress Its Own Directory