Census: Microsoft Advertising Sync Failures
Timeline of updates
- resolved
Syncs to Microsoft Advertising temporarily experienced failures with an error message like "OAuth2::Error: invalid_client" from approximately 05/21/2026 17:00 UTC - 05/21/20206 23:19 UTC.
This error was the result of the Activations Microsoft Advertising app configuration and it has now been resolved. Any impacted syncs will recover on their next scheduled run.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
22b2cd626beb5e44…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by Census, started 2026-05-21 17:00 UTC, resolved after 0 min, 1 update(s).
- Title
- Microsoft Advertising Sync Failures
- Vendor
- Census
- Date
- URL
- https://rewindex.com/company/census/incidents/gd4hvt7kkzhd
Census profileRecent Census incidentsAll outages on May 21, 2026Census in May 2026MarkdownJSON