How to do a Conversion involving two Legacy Systems?

Are DFF's controlled at organisation level? If yes how?

whether any one worked on sales order conversion and i want to know the process to do this and i am having some concerns in data mapping...Please assist on this...Regards,ravindra.

I am a CRM function consultant, is there any certifications available in oracle for oracle apps service modules such as field service,teleservice,depot repair,service contract & even want to know if there any certifications available on oracle apps sales & marketing.