how can the parition is not be refered to other parition users

how can the parition is not be refered to other parition users?

Do we need to use the vcmp?

I have tried creating customer A and customer B partiions

when i check the parition list both of name is refered by both partion users. but we want to prevent it.

Do i need to use vCMP and create guest and partion is only way ?