List opportunity stages
Returns every opportunity stage id/name pair valid for the stageName field on
OpportunityCreateRequest/OpportunityUpdateRequest, scoped to the authenticated user’s
company and sorted the same way the application UI presents them (sort order).
Authentication
AuthorizationBearer
BrightMove OAuth2 client_credentials - use the client_id/client_secret from User > API Keys (or an admin-managed client).
Response
Opportunity stages returned