Hi Pratheep, Thank you for the insight and your article was very
helpful. - In addition to using the appendVisitorIDsTo function, do you
think we should also setup a CNAME
(https://docs.adobe.com/content/help/en/id-service/using/reference/analytics-reference/cname.html)
for our websites to help with cross domain tracking and ECID? Or does
the CNAME not help with ECID/cross domain tracking? It would be a lot of
additional effort for us to setup CNAMEs for the large number of
websites that we own ...