Avoid creating dimensions to contain a high number of values

Avoid creating dimensions that contain a high number of unique values, as they can unnecessarily clutter the reporting database and your reports. For example, it may be tempting to create a dimension to track shopping cart values. However, this dimension could contain thousands of different values. When applied to a report, the report can become cluttered. Filtering the report by Top-N values or a specific set of values may not be meaningful.

Note: To capture data such as price, which could contain theoretically a limitless number of values, Discover recommends using numeric group lists to bucket the dimension values into groupings such as low, medium and high. See Manage Events - Dimensions Tab.