Begining, June 1, Microsoft's adCenter will begin calculating the monthly maximum for all campaigns.
"On June 1, we'll be implementing the Daily Budget change for all daily budget campaigns. Now, the monthly maximum amounts for all of your new and existing daily budget campaigns will be automatically calculated by the adCenter system. This change will help make it even easier for you to plan and manage your daily campaign budgets," announced the Ricky Poole on the adCenter API Blog for Developers.
"Over the last few months, Microsoft has been tweaking the daily budget capabilities in its API in an effort to make its system simpler and easier to use. As of earlier this month, any new or edited campaigns included the Daily Budget with Monthly Maximum option, which calculates a monthly maximum based on advertisers' daily budget."
The calculated monthly maximum equals the daily budget value multiplied by the average number of days in a month. If advertisers prefer to manage their budgets on a monthly basis, they may still do so.
"If you haven't already, please evaluate your daily budget amount to ensure that it reflects the total amount you target to spend in the month," Polle added. "If you prefer to manage your campaign budgets on a monthly level you can always do that by choosing the Monthly Budget Options."
[Source: adCenter API Blog]