The Pinterest extension adds the JavaScript code necessary for using Pinterest to your store theme.
Learn more about Pinterest and see the general instructions for installing and activating extensions.
Extensions are not available in MyCashflow Free plan.
With the extension enabled, you'll be able to add the PinIt button to your store theme by using the {PinItButton} tag.
Optionally, you can also use other Pinterest buttons whose sample codes are available on the Pinterest website for developers.
Pricing
Using the service is free of charge.