To activate an integration you have to go to your Back office > App market. 

You choose the integration you want to activate, and by clicking in "Learn more" you can read all the information related. 

If you have any doubt about the integration, please contact our Customer Support and they will assist you on  it. 

Once you are ready, to activate the integration you just have to click on it and on the green square with "enable" on it. 

Follow the steps in “configuration”. 

To deactivate an integration you have to contact the support.