Hi @SasikumarSP ,
You are right in that it’s not possible to determine the publisher of a message easily at the moment. I mentioned using header fields like senderId to determine who published a message, but that field is optional and requires your publishers to provide it.
If they don’t, then you have no way of determining who published the message.
Unless, you have the publisher id built into your topic hierarchy and are enforcing this via ACLs. This is described in a topic best practices blog post by Ken Barr and referred to as SourceId here: https://solace.com/blog/topic-hierarchy-best-practices/
If you don’t have either of these options available to you right now, then distributed tracing might provide you with a way of aquiring this information in the future when that feature gets added to our brokers.