For a given account, create a deal. This is particularly useful if you're integrating with a CRM or another application that has a similar notion of a deal.
Note that you can create associations between Deals and Contacts and Companies much the same way you create an association between Companies and Contacts. Associating your Deal with Contacts and Companies is not required (i.e. you can create an orphaned deal). You can also pass any custom property value you want to the deals API, so long as you've created the property first.
dealstage property is required when creating a deal. If the
pipeline property is not specified, the default pipeline is assumed. However, it is recommended to always specify the pipeline, especially on accounts with multiple pipelines. You can manage pipelines and dealstages through the CRM Pipelines API.