Linking thirdparty to member via api

Developing for Dolibarr
1

I cant get this working.
I have plenty of member created. I need to assing a bank account via api

  1. create third party (POST)
{
            "status": "1",
            "country_id": "5",
            "country_code": "DE",
            "client": "1",
            "code_client": "-1",
            "name": member.firstname+" "+member.lastname,
            "email": member.email,
            "entity": "1"
        }
  1. link by PUT to a member
{ "fk_soc": "164" }

this has no effect. I cant find a api for this.
Is it possible? How?

2

easy. I found it. Just using

{ "fk_soc": "164", "socid": "164" }