When viewing SAINT classification reports, you can break down a key value by a classification to verify its accuracy. When doing so, you can see more than one classification associated with the key value. Though a key value cannot belong to more than one classification, this observation is expected behavior in reporting.
To see multiple classifications for a key value breakdown, both must occur:
- The classified variable in question is a conversion variable (such as eVar, campaign, or products).
- A metric in the report is based on conversion (such as revenue, units, custom events).
Since you are looking at a conversion variable with conversion metrics in a breakdown report, linear allocation is used. Linear allocation divides credit across all values seen in the visit. Viewing revenue in a classification report divides all credit across all classification values seen in the visit. This anomaly gives the impression that multiple classifications belong to a single key value.
Because this property is how conversion reporting works, Adobe recommends viewing non-conversion metrics when verifying the classifications of a variable value. Instances is a non-conversion metric that does not persist, which accurately display the classification a key value belongs to.