You can control reattribution in MyTracker using by Inactivity window and the Reattribution to organic option. Settings are configured for the whole project and apply to all applications within it.
To configure settings:
For more details on projects, refer to Project
By default, the Inactivity window is 30 days.
That is, if the user has not been active for the last 30 days, then the next launch or installation will be defined as a reattribution event: Re-engagement and Re-install. For more details, refer to Reattribution
By default, the Reattribution to organic option is turn on. All users who return without interacting with ads (free traffic) will be associated with Organic
If you turn off the option, all organic Re-engagements and Re-installs
will be associated with the previous attribution campaign.
In this case there's no reattribution.
For more details, refer to Reattribution