Campaigns can run on any model you choose (Simply Free, Nearly Free, or Not Free), and you can change which model at any time – even while the campaign is running!
STEP 1 – Click ‘Settings’ and then ‘Payment processing’ in your navigation menu.

STEP 2 – Under ‘Pricing model,’ click ‘Change’ next to your current model and make your choice.

STEP 3 – Save.
