Hi dear,
Thank you for trying help me, but i did this: I went to azure cosmos bd account and i created the container directly in azure cosmos BD account. As iot unica was created, in my case, I only did clic in new conatiner and followed the step default, choosed DB iotunica.
Later, I went to stream analyticis job, outputs, add cosmos db, i wrote output alias and chose database and container exisiting, finally save. Thanks