Control of spend levels is maintained through a selection of bid management processes. For example bids can be set for individual ad groups or keywords, each tailored to your budget to make sure that these are set to maximise your return on investment. To maximise your budget's effectiveness, we can schedule your ads to only appear in the most productive part of the day for your business, eg ad may only appear 5pm-midnight. This ad scheduling process allows the raising and lowering of bids by a percentage at specified times. As a final measure we can set a daily spending limit on your campaign which will stop your ads showing once your budget is reached.