We still have the old/classic version of Analytics "ga.js" installed on our site pages. Now, planning for GA code migration...
Some of my queries are:
1.) Will a migration from old ga.js code to new analytics.js code reflect any changes in site traffic in GA?
2.) Will we witness any dip in total site traffic OR a dip in any particular channel like "Organic, Referral, Direct" due to traffic shifting elsewhere?
3.) What will happen to the historical data?
Any similar experiences? insights? Much appreciated.