Migrating SU24 to new system properly (ecc 5.0 to ecc 6.0)

Question

Hello,
We are currently upgrading from ECC 5.0 to 6.0. As part of this cutover to the new system, I need to download SU24 properly from the 5.0 system and upload it to the new 6.0 environment because we heavily use SU24 for custom tcodes and to add additional auth objects to SAP delivered transactions.
The good thing is that SU24 has a download capability in the transaction, but the problem is that it gives you three option of downloads, in which all three can be selected.
1) SAP Data
2) Original Data
3) Customer Data
I know that we will obviously want to use the "Customer Data" due to our Ztcodes, but what is the difference between SAP Data and Original Data?
Our goal would be to download and upload only our custom changes (to both custom transactions and SAP transactions), but we do not want to overwrite any newly delivered SU24 updates that SAP may have implemented in ECC 6.0.
Has anyone ever done this or does anyone have an idea what these mean? Of course, the SAP help is useless on this issue.
I looked for such messages and read them here, I guess I still have some anxiety about ensuring that I download only what my company has maintained since our older 5.0 system went live. If I download all of the "Customer Data" option, I think that covers all of our custom transaction codes, but will that cover the auth objects associations to SAP delived tcodes we have made as well?
Also, It  seems that I will have to use SU25 to activate.  Any information of the best way to to do this our situation would be greatly appreciated!
Thanks,
Ryan

Answer 1

Thanks for responding.
The thing is that the person asking the questions does not give a hoot about points until they have an answer, and then only maybe... so forget about points.
Answering questions with random links or wild guesses in the hope that one of them scores a few points makes a big mess of the forums and renders the search almost useless when all these link-farms turn up.
Take a look at this thread for an extreme example => work flow
It is okay to post a link when there is a good reason for it, embedded within a discussion or to support an answer as a reference.
Please take a look at this thread for a more detailed discussion => How Far it is Good???
Now, back to the discussion...
I am not logged on, but if I remember correctly there is a function module which uses combinations of these three flags to read the SAP data (current SU22 data), the original data (SU22 data without the "update" flag - because in the past SAP rolled out some support pack notes to change SU22 and some customers maintained SU22 anyway instead of SU24...) and the customer data (which is what you are looking for). Additionally the function module parameter has a 4th flag for when nothing is checked, and then it downloads everything (?). The name of the function was something like SU22LISTVALUES but you should be able to find it via the Object Navigator from the download screen - Menu => System => Status => double-click the GUI Screen program. I remember there being lots of comments in the coding as well to help understand it.
But this was some time ago and on a 4.7 system when I had looked into it, so please also check how many entries are downloaded and compare these to your USOBT_C and USOBX_C tables before you do anything like an upload... - as the download might not deliver information you are expecting (assuming that you ran SU25 after making changes or made some changes to SU22 without importing them via support packages, etc).
Let us know what you find. I will take a look in the next days as well when I find a system with some data in it...
Cheers,
Julius