There are two main characteristics we can control in configurations: the value of dimensions, and the state of a feature. Dimension values can be changed per configuration, regardless of whether they’re used for a sketch or for a feature, as in the depth of an extrusion. Features can be suppressed and unsuppressed per configuration.
As you can imagine, the number of potential configurations can grow dramatically. Any sketch or feature dimension can be changed to many different values. And this can be compounded with features that are suppressed or unsuppressed. Any easy way to manage this is with Excel design tables.
Excel design tables can be an extremely useful tool when creating parts with many different configurations, and with many different variations.