I have a list of custom fields for a Deals in Pipedrive. (Located here https://your-instance.pipedrive.com/settings/fields?type=DEAL)
Each custom field has a custom API Key
which looks like this a56aff894af47285d3bbcd67fe06ee5143fb1123
I try to update these fields in a Deal in bulk.
According to the Update a deal
documentation https://developers.pipedrive.com/docs/api/v1/#!/Deals/put_deals_id there is no information about these custom fields.
The question is how to update custom field value in a certain Deal?