ParentId in CustomerAddress Entity in Dynamics 365

Question

There is an Attribute called ParentId in CustomerAddress Entity. Will this contain the AccountId or ContactId?

If yes, if I create another Account or Contact with the exact same Address Details, a new record will be created anyway as the ParentId will be different?

Or if the AddressId is going to be stored in the Account Entity, can the same address be used by different accounts or even contacts?

Can Account1 and Account2 or Account1 and Contact2 have the same address?

Answer 1

The relationship between Address entity and Account or Contact entities is one-to-many. It means that one Account can have multiple Addresses , but one Address can be assigned to only one Account .
Answering to your question: no , multiple Account and Contact records can not share the same Address record.