You can create a segment based on data from your app or from an app that you have access to.
In the Segments tab, click Create segment and choose Based on Yandex data → AppMetrica. Enter the name of the segment, the name of the app, and choose which type of data to use for selecting users. Please note that the segment will be based on data from the past 90 days.
The segment you create will be assigned the “Processing” status. Processing can take up to two hours. If the coverage is at least 1000 anonymous identifiers, the segment status will change to “Finished”. Then you can use this segment to set up your ad campaign.
If your access to the app was revoked, the segment gets the status “Inactive” and ads will not be served for the segment.