Resolution levels define the data warehouse or auxiliary database table from which records are to be selected when a selection rule is run.
When configured with a data warehouse table, they can also define from where records are to be selected when an audience instance is executed, and the default level at which records retrieved from that table are to be deduplicated.
The database key assigned to a resolution level is used for deduplication and join operations at query time. While the application does not enforce uniqueness on this key, it is strongly recommended that you select a unique key. Use of a non-unique key can result in unpredictable output values and incorrect audience counts. Refer to Getting started with Resolution Levels for full details.
Configuration of resolution levels is carried out in the Resolution Levels configuration interface.
In this section: