@sana_john - You can add a classification without impacting existing
classifications.Taking the example from one of your other comments on
this question, let's assume you already have "id", "name", and
"category" as classifications for your Tracking Code (s.campaign / v0)
report. You could add a new classification such as "sub-category"
without impacting existing data and or reporting.If you have
Classification Rules running for this eVar, you can add rules to account
for the new "sub-category" ...