Upgrade Primavera P6 V6.2 to V15.X
I am new to Primavera Product suite and I am assigned task for updating Primavera P6. I would like to know if there is guideline available which can I refer for upgrading primavera. I found some good reference which tell how to install Primavera 15.x but it does not tell what are steps involved in upgrading v6.2 to V15. I read somewhere you cannot upgrade V6.2 to V15.x you need to first upgrade to V8 and then V15.x but I could not find much information on the same. Please let me know if there is instruction available for upgrading Primavera.