Microsoft Purview | Information Protection: Exact Data Match to support 10 primary (searchable or indexed) fields
Organizations will be able to configure Exact Data Match (EDM) Sensitive Information Types (SITs) to include up to 10 primary fields (current limit is 5), providing customers more flexibility in configuring EDM.
More info: https://docs.microsoft.com/microsoft-365/compliance/sit-learn-about-exact-data-match-based-sits?view=o365-worldwide