Starting at about 5am (EST) yesterday, I have been noticing reports in the forums about Google being slow to update both the AdSense reports and the AdWords reports. The two largest threads discussing the issues can be found at WebmasterWorld and Google Groups, but there are plenty of other threads throughout the forums with complaints.
Again, first reports came in at about 5am (EST) yesterday and the issues have still not been resolved. We do have reassurance from Google in the WebmasterWorld and Google Groups threads that the issue is only reporting related and all the data is being tracked. When the reporting issues are fixed, it will show correct data.
AdSenseAdvisor posted at WebmasterWorld saying:
Thanks for your comments and your patience, and apologies for the delay. Our engineering team is working to address this issue as soon as possible. Please be assured that your account statistics have still been tracked, and we are working on displaying them in your account.
I will be sure to post with any additional updates.
AdSensePro Stephanie posted twice in the Google Groups thread (and other Google Groups threads) saying:
I've escalated your reports to our engineers, and they're currently investigating the issue. I'll be sure to update this thread as soon as I have any more info -- thanks for your patience in the meantime.
She then added a little bit later:
I've just received an update from our engineers: they're still working on resolving the issue, but they have confirmed that no statistics or data have been lost from your accounts. I'll let you know when I have more info about when you might expect to see updated stats. Again, we appreciate your patience.
The WebmasterWorld thread has over a 130 posts, and the Google Groups thread has almost a 100 posts.
In addition, you can see the brand new AdSense Known Issues page for an update that shows the issue is still not resolved, as of 7:45am (EST) today.
Forum discussion on both the AdWords and AdSense side at the following threads: