Changes to Assign a firm role on an entity

the response property error became optional for the status 403

deleted the path request parameter entity_id

api operation id createEntityFirmRoleAssignment was added

the endpoint scheme security bearerAuth was removed from the API

api tag Entity firm roles added

added the new optional query request parameter external_entity_id to all path's operations

added the new optional request property external_entity_id

added the non-success response with the status 404

added the non-success response with the status 422

removed the non-success response with the status 400

removed the non-success response with the status 401

added the optional property firm_role_id to the response with the 201 status

added the optional property id to the response with the 201 status