1) Build tab
To configure your campaign, navigate to the 'build' tab of the campaign, which will take you to the 'AdWords configuration' step. Note: there are additional tabs at the top of the build tab which will let you manage different parts of the build.
2) General settings
First, under 'campaign name' settings you can choose either to create a new campaign or to choose an existing campaign.
Next, under 'campaign name' choose a name. The name of this campaign can be dynamic: you can use the values of fields from your products. For example: if you add 'brand' to the campaign, possibly hundreds of campaigns will be created for each brand in your product list.
Next, under 'ad group name' choose a name for the group of products that will be in this campaign. The name of this ad group can by dynamic: you can use the values of fields from your products. For example: if you add 'title' to the ad group, possibly hundreds of ad groups will be created for each title in your product list.
Under campaign type choose a type from the option displayed on the drop down menu.
Last but not least, choose a Default CPC (Cost Per Click). This is the cost you would like to pay every time someone clicks on your ads.
Note: The higher your CPC the higher up your ads will be displayed. Continue building your ad templates here.