WooCommece integration service is a paid service.
Open your WooCommece settings.
Click API tag, check Enable the Rest API checkbox.
Click Keys/Apps link.
Then, click Add Key button.
Choose a User, give Read/Write permissions. Click Generate API key button
Now you have the Consumer key & Consumer secret.
Open a Wisetronic support ticket here, copy and paste the Consumer key, Consumer secret and your WooCommerce online store url in the ticket, and don’t forget to provide your MiniOffice store name and the group name.
Then, just wait for us to setup the integration, it normally takes 72 hours.