crm_core-8.x-3.x-dev/modules/crm_core_match/crm_core_match.links.menu.yml

entity.crm_core_match.collection:
  route_name: entity.crm_core_match.collection
  parent: crm_core.config_overview
  description: 'Configure the default rules for matching duplicate contacts in CRM Core.'
  title: 'Matching Engines'