Current version of API requires making an API call for each custom fields value that needs to be updated (or set) for each deal. So, if an instance of ActiveCampaign has 30 custom fields, then we have to make 30 API calls just to update each custom value. This seems like unnecessary complexity: for example, updating standard field values could be done in 1 API call.
Is there a way to do the same with custom fields? Ideally, even as a part of the update (or create) call to the deals endpoint (this seems like a prevalent practice in the industry).