@nirgrahamuk Thanks, it works properly when i try to separate "google / cpc" for example
There are incorrect separation in my situation:
separate(IVI_my_ga,"campaign",into = c("campaign","campaign_id"), sep = "|")
I`ve got a warning: bad offset into UTF string
Maybe the problem is "vertical_cis-kzh_v_net_v_g-cert-classic|15383364954"
"vertical_cis-kzh_v_net_v_g-cert-classic" - words
"15383364954" - numbers