Attributes for deal update To assign owner of a Deal you can send attributes.deal_owner and utilize the account email or ID. If you wish to update the pipeline of a deal you need to provide the pipeline and the deal_stage Pipeline and deal_stage are ids you can fetch using this endpoint /crm/pipeline/details/{pipelineID}

Warning - Using PATCH on linkedCompaniesIds replaces the list of linked contacts. Omitted IDs will be removed.

Warning - Using PATCH on linkedContactIds replaces the list of linked contacts. Omitted IDs will be removed.