Below are the data retention policies for impression data in the UI for ClearLine accounts.
Publisher ID/Name: 100 days
Advertiser Domain: 100 days
Device Make/Model: 100 days
Country/DMA/Region: 100 days
City: 30 days
DSP Deal ID: 100 days
Content Fields: 100 days
App Bundle/ Name: 100 days in UTC – Today and Yesterday all other timezones.
Partner Segment Vendor/ Partner Segment Code: 180 days