To find WooCommerce API key, please make sure you have installed TrackingMore WooCommerce plugin and activated it at your WordPress Adminstrator Account. See below example.

Steps to find WooCommerce API key

Step1: Login to WordPress Admin Panel and then go to User>Your Profile.

Step2: Scroll your mouse until you see "Generate API Key" and then click the box in the front of it.

Step3: Click "Save" button.

Step4: An TrackingMore WordPress API key appears.

Step5: Copy and paste it to your WooCommerce Connector page.