I am trying to create a conversion action using the Google Ads API. I've found that when I create the conversion action, it is automatically set as a "Primary" Optimization Type. However, I'd like to create the conversion action and set the Optimization type to "Secondary". The only thing that looks remotely close to achieving this is this code:
conversion_action.include_in_conversions_metric = False
However, when I try to send a request to create the conversion action with this metric set to False, I receive a response from Google that says:
message: "The field attempted to be mutated is immutable."
Does anyone know how to create the conversion action while setting this Conversion Type to Secondary?