Allow you to monitor performance by setting a target for the amount you want to spend on a clickWhen a user clicks on an ad they are taken to the ad’s landing page (or final URL) for the ad. This is when the advertiser is charged for a campaign using a CPC bid. or conversionA conversion is reported whenever a user completes a goal or makes a purchase during a session. Each goal will report a maximum of one conversion per session, while every transaction is reported. See also goal completion and ecommerce transaction.... Always-R Glossary for one or more campaigns.