A tool that lists the changes that you've made to your account during the past two years. See details about changes such as when you paused your campaign, who added a keyword and the amounts of your previous budgets.
- You can view all changes for a particular date range, filter the results by the type of change (such as budget adjustments or keyword edits), or see changes for a particular campaign or ad group.
- The change history tool shows each change within a timeline, mapped to your account data (such as impressions, clicks, conversions, click-through rate and cost). Compare your changes with the timeline of performance data to help you know which changes may have contributed to changes in your performance.
- If you've given other people access to your account using their own login, you can also use the tool to see who made certain changes.
- You can find Change history in the "Tools" menu, or go directly to the tool by visiting adwords.google.com/ch/ChangeHistory