hi @vraghu
afaik you should end up in the default group if not specifying any.
so I think your understanding is right.
though the connector states if the group is not found it will create the topics with the broker defaults.
I think it’s worth to try to specify a group and set your desired config like this:
"topic.creation.group":"$yourgroup",
“topic.creation.$yourgroup.partitions”: “1”,
“topic.creation.$yourgroup.replication.factor”: “2”,