Activity @baseclass.pyDuplicateSearchCases, java step 2:

CaseMatchName= pp.getString("CaseMatchRuleName");

Property CaseMatchRuleName is not available to be set using property-set in an activity. This makes it impossible to pick a match rule name (among many) at design and runtime.

OTB duplicate search flow and the above activity should make it easy to define our own matching rule name (which can vary depending on business need)s by either making a parameter available or make 'CaseMatchRuleName ' available to be set using property-set.

This will help avoid overriding activity pyDuplicateSerachCases for every matching rule

Please see https://pdn.pega.com/community/product-support/question/duplicate-case-search-set-casematchrulename