Hi

I try to execute the function RetrieveEntityRibbon via the API in JavaScript and I always get one of the two errors back:

- myorg.crm.dynamics.com/.../RetrieveEntityRibbon(EntityName='account') returns the error "Resource not found for the segment RetrieveEntityRibbon"

- https://myorg.crm.dynamics.com/api/data/v9.1/RetrieveEntityRibbon?EntityName=account returns  Required field EntityName is missing

Why is that?