You can create and save a new campaign without payment information, but in order to launch an ad group, you must have a valid credit card on file.
This section will show you how to add a new, edit, or update a payment card in your account. If you wish to be invoiced instead, please email email@example.com for support.
Add a new payment method
You can add a credit card in one of two ways:
1. When you save and launch a new ad group for the first time, you're prompted for your credit card information if one is not already saved.
2. You can add a new payment type by selecting Billing from the user drop down menu.
Step 1: Select Billing from the drop down in the top left corner.
Step 2: Select "Add Payment Method" to add a new credit card.