Go to https://desenvolvedores.cnova.com/
Step 1: Click the Apply button
Step 2: Access Developer >> My Apps
Step 3: Click the REGISTER NEW APP button
Step 4: Fill in the fields as shown below:
* Name: Name of your store or app
* Description: Description of your store or app
* Link: http://www.yourdomain.com
Click the REGISTER button
Step 5: After getting the Token and Secret Key. Go to Settings >> Cnova.
Edit the Token and Secret Key fields