Master data inconsistency table KNA1

Hello experts

Normally in our scenarion BP will be created in CRM and replicated to ECC(ISU)

as i check in system there are about 40,506 SD consumers (table KNA1) where name (name1 / name2) is not maintained.

Some of these consumers are created during migration, however there are consumers created recently as well.

I have randomly checked for few consumers and all these consumers are of BP type is person.

For more information please find below screen shots.

kindly suggest

Regards

Chinna