Pre and post-upgrade tasks in BW for Upgrading R/3 4.6c to mySAP ECC 5.0

[ChandranGanesan]

We are currently in the process of migrating our R/3 4.6c System to mySAP ECC 5.0.

We would appreciate if anyone could provide the major and minor

Changes / impacts / measures, to be taken in BW side.

<u><b>Questions:</b></u>

1. What are the major impacts on the extractors, mainly delta?

2. Do we need to activate all the datasource immaterial of its status?

3. Steps to be taken for Unicode conversion

4. Routines and structure change if any?

5. Is there any change in DDIC objects?

6. Any old methods that can be replaced by new methods? (for better performance e.g, LIS was replaced by LO)

7. Changes in the database.

8. Anyother issues

Any relevant document will be helpful.

Thanks & Regards

Chandran Ganesan

[Former Member]

Hi SAP Gurus

I've some doubts regarding ECC 5.0.We are implementing ECC 5.0.The Client wants to implement BW also.So whether can we use the same BW, which is integerated in ECC 5.0

or we can go for separate BW 3.5 sytem like R/3 and BW implementations.Is there any differences between these two?Which method we suggest them?

[Former Member]

It depends on what you are taking about: functional or Technical.

Tehcnially, after the upgrade you should make sure all the PI are working fine. The other things (i.e. extract)should be able keep the same. Unless you want to take advantage of the new WAS640 functionaity.

If you plan to migrate your BW system into ECC 5.0, you might have long way to go.

Also, depends on your BW release. If it's BW 3.1 or below, you might need to upgrade by end of this year anyway.