GSC Permanently Loses Performance Report Data for August 23rd and 24th

Last month "an internal problem" at Google caused a data loss in Search and Discover performance which apparently is not recoverable.

According to Google's support doc,

An internal problem caused a data loss in Search and Discover performance during this period. Users might see a significant data drop in their performance reports during this period. This does not reflect any drop in clicks or impressions for your site, only missing data in Search Console.

In regards to recovery, John Mueller tweeted,

Sometimes we can rebuild it, sometimes there's just data loss. From the wording on the annotation, it looks like this is really data loss and won't be back-filled. In the past we've looked at just adding interpolated data, but imo that's iffy (especially with keywords, etc).

— John (@JohnMu) August 31, 2021

• Actionable Strategy — Whatever your Performance report is showing for data on August 23rd and 24th, it's safe to assume you had a better day than that. Be sure to note the data glitch when reporting to clients, backed up by Google's annotation in the Search Console report.