An enrichment is the use of custom logic to transform an attribute from a static value to a dynamic one. This is used to create new data values or modify incoming data. Pre-built enrichments are available for each data type. For example, the ability to increment or decrement a numeric value is available to number attributes.
When two or more enrichments have a dependency on the same attribute, they become linked enrichments. The following example shows the enrichments applied to the start and end of a visit. The enrichment in the Visit Start attribute uses the Visit End attribute and vice-versa. Because each enrichment is linked to the other by an attribute, they are considered linked enrichments.