post https://apim.demo01.my.fivedegrees.cloud/publicapi-sbx/api/v1/companies//entity-relations
API endpoint to create a relation from a Company to either a Person or Company. The relation will be created in the direction how it is exposed in the reference data 'entity-relations'. In case of for instance Parent Company-Subsidiary relation than the relation will be created from the Subsidiary to the Parent Company.