input: [Term in DART for Publishers] Change log A list of all of the changes that have been made to an ad or order since it was created. The change log also shows the user who made the changes.
output: Change history A list of all of the changes that have been made to an order's name, placement, cost or other settings. You can review changes to an order's name, placement, cost, or other settings at any time by viewing the change history.