Create and Label Custom Fieldsput https://sandbox.ebsco.io/rm/rmaccounts/{custid}/Path ParamscustidstringrequiredBody ParamsJSON payload to update custom labels and proxy.proxyobjectrequiredproxy objectlabelsarray of objectslabelsADD objectHeadersx-api-keystringrequiredResponses 204The server has successfully fulfilled the PUT request. 404Customer not found. defaultUnexpected ErrorUpdated 2 months ago