Creates a new Opportunity resource for a deal submission process. This can have the state DRAFT or SUBMITTED. Creating a SUBMITTED Opportunity initiates an offline review process, in which Google determines whether it's ACCEPTED or REJECTED.
Possible error codes:
PERMISSION_DENIED: The user making the request isn't allowed to create an Opportunity.
INVALID_ARGUMENT: Required request parameters are missing or invalid.
Return value: The newly created Opportunity resource.
HTTP request
POST https://cloudchannel.googleapis.com/v1alpha1/opportunities