After migration to launch , Unspecified is significantly increased (80%) before migration it was 14k , after migration it was 60k unspecified in SiteName report. Please suggest why Unspecified data is more.
@Gayathri06To be able to assist you further can you please clarify whether Site Name dimension is the out of the box dimension or is it a custom dimension like a prop or evar? Also, share the full screen screenshot of the report which you are looking at to validate this behavior.
Once I have the above information, I can share further suggestions with you.