1. Login to your BC control panel
2. Enter your details... Copy your store address and store username and save it somewhere, we will use it later.
3. In your control panel click on users at the top menu
4. Click on edit in the user list.
5. Scroll down and locate "Enable the API". Click on the check box near enable the api.
6.Copy the api token and click on Save.
7. Sign up on RetailTower remember store address should be https://yourstore.
8. Enter your BigCommerce store details on Retailtower.
Check step 2 for your store username and store url...Note that the store url should be https.
Check step 6 for your Api Token. Please remember to click on save on the control panel.