During the linking process, two matched records link to the same cluster. When you set null_ind=2 and if one of the linked records contains a null value, the matching process excludes it from further matching.

Previously, the record with the null value continued to match with other records that contain non-null values and ended up linking irrelevant records to the same cluster.

For more information about configuring the matching rules, see the

Informatica MDM - Relate 360

Installation and Configuration Guide

.