Im trying to trigger a realtime event using postman sample request with calldetailsrecord pega exercise.

I created a stream data set and configured it in the data flow and calls the event strategy from stream dataset. While all the configuration was done correctly and outputed till event streategy in the data flow

But once im trying to hit postman with POST action passing the sample request with correct parameters

im always getting connect timed out.

Eventhough i created a realtime data flow run and its in progress still im getting the same error.