promoting a service asset

I am trying to promote a service asset from one creation registry to consumption registry in a two stage deployment approach. I have the consumption stage configured with IP and port of the consumption registry. I checked the consumption stage at the Promoted state of creation registry. When I export the service from source registry and import it to target registry, I get the following errors in the import log. The type of these errors is “Auditable Event”:

INMIEE0007: The import object refers to another invalid import object with key (uuid -)
Any pointers as to the reason for this are appreciated.