How to avoid duplicate fields in CIM Data Normalization?

[Atchyuth_P]

Hi Team,

I am using field aliases as in my sourcetype i have two common fields (dest & dest_ip) which have same values.
When i applied field aliases both were reflecting.

How to avoid duplicate fields

Kindly help in this scenario

[richgalloway]

Having two aliases for the same field will result in 3 fields (the original plus 2 aliases) with the same data.  That may be necessary for some use cases, which means you have to live with it.  Fortunately, aliases are search-time operations so no storage is consumed.  If you don't have a need for multiple aliases for the same data then remove one of them.