Not Able to Update Customer Contact Point via REST API

Summary:

Why Contact Point REST API

/crmRestApi/resources/11.13.18.05/hubPersons/{PartyNumber}/child/ContactPoint

only works for some PartyNumber?

Content (required):

**This post was created as part of a How to Service Request (SR)**

select hcp.* from hz_parties hp,hz_contact_points hcp where hcp.owner_table_id = hp.party_id and hcp.OWNER_TABLE_NAME = 'HZ_PARTIES' and hp.party_name = '&PartyName' and hp.party_type = 'PERSON' ;

returns there are contact points defined for the partyID, but REST API

/crmRestApi/resources/11.13.18.05/hubPersons/{PartyNumber}/child/ContactPoint

returns 404 error, why?

Version (include the version you are using, if applicable):

22B

Code Snippet (add any code snippets that support your topic, if applicable):