- Account must be less than 14 days old
- Promotional code must be from the same country as AdWords account.
- Sign in to your AdWords account.
- Click the gear icon
and choose Billing & payments.
- Click Settings from the menu on the left.
- Scroll to the bottom of the page, then click Manage promotional codes.
- Click + Promotional code.
- Enter your promotional code.
- Click Save.