Hi All, I am currently working in 11.0.3 version of Oracle, heavily customized (upto 80%) with Interbusiness environment (not the standard GIS). The customization is similar to what we have in R12 (Intercompany). Currently working purely in the Support Environment. I want to upgrade my self to R12. Can you please suggest if switching directly to R12 is advisible or to upgrade first to 11i and then to R12. Regards, Vikram.