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DB Migration and ECC 6.0 Upgrade

I have a number of questions, we have a SAP R/3 4.7x200 landscape that is currently Windows 2003 and SQL2000 both 32 bit, we want to do the following, move to Windows 2003 and SQL2005 64bit, perform a Unicode and ECC6.0 Upgrade.

here are the steps I am planning on new hardware

1. Migrate to 64bit

-install 64bit OS and SQL2006 64bit on new hardware

-export db from current 32 bit and import into 64 bit system

a. I am confused, I have seen threads where it appears this was done in house, do we need an SAP certified person to complete this task, this is a hetergenous copy? Note 82478

b. can we do this inhouse if we follow the SAP documentation and checklists provided and have their signoff with checks

- Run tests and then confirm process before real migration

2. Perform Unicode Upgrade

- run this on sandbox, test and verify

3. Perform ECC 6.0 upgrade

- run this on sandbox a no. of times confirm

- freezing development and starting with DEV (this is a small landscape, we can do this)

p.s can steps 2 and 3 be combined in one step, I have broken that out, to in my mind make it simpler to fix if anything breaks.

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