What is the difference between the maximum daily budget and the Google Checkout authorized charge limit?
When you first enable billing, you are required to authorize a Google Checkout charge limit which represents the maximum amount that you can be charged through Google Checkout for App Engine resources used by this application. After your authorization request is processed, you are free to adjust your maximum daily budget to any value lower than this limit. If you want to set a maximum daily budget that exceeds this limit, you must authorize a new charge limit with Checkout—afterwards, you’ll be able to adjust your max daily budget up to this amount.
