Obsolate User Entitity - PER_EXT_CONTACT_RELATIONSHIPS_UE

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Obsolate User Entitity - PER_EXT_CONTACT_RELATIONSHIPS_UE

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Hi Experts,

User Entity PER_EXT_CONTACT_RELATIONSHIPS_UE is showing as obsolate in application. where as PER_PER_CONTACT_RELATIONSHIPS_UE is not date effective, which user entity we can use for contact information with effective date.  what are the implications if we use obsolate User Entities for HCM Extract creation

Is there any other alternate user entities we have. we need complete demographic information of  contact including address 

Thanks  - Thiru