Why Don’t Hourly Reports Sync All Historical Data?

Question

Why hourly reports do not sync all available historical data even when the historical time frame is set to All Time?

Environment

Connector: Microsoft Advertising

Answer

Even if the historical time frame is set to All Time, only the most recent six months of data will be available to sync due to the reporting data retention time. Retention time can vary by report. For more details on retention windows for specific reports, see Microsoft’s Reporting Data Retention Time Periods documentation.