Here is a batch script you could supply the users to install certificates, or push this via RUM with the script task.
You could supply the users the script if they are running the migration with CCU. I would especially suggest using CCU if the users are remote over VPN.
rem CA v2
certmgr.exe -add \\server\share\ca2cert.cer -s -r localMachine trustedpublisher
Here is a batch script you could supply the users to install certificates, or push this via RUM with the script task.
You could supply the users the script if they are running the migration with CCU. I would especially suggest using CCU if the users are remote over VPN.
rem CA v2
certmgr.exe -add \\server\share\ca2cert.cer -s -r localMachine trustedpublisher