Restrictions on properties used in duplicate tracking
The following restrictions apply to the property names and values that you reference in expressions on the Case Match form and the Track duplicates category of settings for a case type:
Properties that are referenced by an exact condition must be exposed as columns in the database.
Properties that are referenced by a weighted condition must be included as columns in a version of the pyCaseMatchProcessingTemplate report definition that applies to the class of your case type.
ArticleFinding duplicate cases