As we first announced on April 11, 2006, today marks the start of the new AdWords API Beta program terms and conditions. Starting today, the current developer quota limits have been abandoned and developers will begin to accrue charges at the rate of $0.25/1000 quota units consumed (or local currency equivalent). We believe these changes will result in more flexible and scalable system for quota allocation and consumption.
You can find more information on the billing process at http://www.google.com/support/adwordsapi/bin/answer.py?answer=46894.
If you are having difficulty accessing the AdWords API, please verify that you have completed your registration and have incorporated your approved Developer Token and Application Token into your API request headers.
-- Rohit Dhawan, Product Manager
