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Configuration
Configuring Unica Discover involves setting up and managing Discover user authorization and configuring Discover server components and services that process captured data.
Unica Discover Event Manager Manual
Manage Events - Dimensions Tab
Through the Discover Event Manager, you can specify data dimensions to track metadata associated with an event. They can be considered the contextual data captured at the moment of event execution.
Global Controls for Managing Dimension Data

Global controls for managing dimension data

To prevent unbounded growth of the database tables that are used to store dimension values, Discover enforces the automated trimming of dimension values.

When a dimension is configured to capture and store observed values, each instance of a detected value is stored in the database, which means that the database can grow without limit. The automation of dimension value trimming is intended to place an upper limit on the volume of data stored in your system for each dimension and to prevent total consumption of available disk space.

Note: Dimension trimming is intended to prevent the database from completely consuming available storage space and causing system-wide failures. It should not be used as a replacement for monitoring the data growth of individual dimensions. Discover recommends using whitelists wherever possible for tracking dimension values.