Reply: 5

Auto translated

SAP ECC with old general ledger to S/4HANA

Hello all,
I need to create a concept for a S/4HANA implementation/conversion. Greenfield is known, but no brownfield conversion yet, where the customer also still has the old general ledger in use.
The new general ledger is prerequisite S/4HANA. I have now somehow read different things during my research regarding on the one hand the timing of the conversion (to new general ledger always only at the turn of the year; S/4HANA generally possible at any period end), so also the compatibility of doing both "at once".
As said - system is on ECC with old general ledger. Goal is a conversion to S/4HANA with go-live on 01.01.22.
Is it possible to do both (migration to NewGL and S/4HANA conversion) "at the same time" and in one go or do I have to do the NewGL migration first on 01.01.22 to be able to convert to S/4HANA on 01.04.22?
Can anyone tell me from their own experience? :)
Thank you and best regards
Manuel
SAP FI/CO Consultant

You must be logged in to post a reply.

Login now

5 Answers

  • Moneyfox
    Moneyfox
    Hello,
    1. The New General Ledger is a term from SAP ERP. This does not exist in SAP S/4HANA! Correct is, SAP S/4HANA is based on the new general ledger!! in SAP S/4HANA there are free currencies, ACDOCA, enhancement ledger etc. and all this does not exist in SAP ERP.
    2. you can convert from old or new general ledger to SAP S/4HANA without any problems. In doing so, you get exactly what you had before.
    - old general ledger with or without account solution in SAP S/4HANA with exactly one ledger
    - new general ledger with or without document splitting in SAP S/4HANA with exactly the same ledgers as in SAP ERP.
    Only if you want / need to switch from the account solution to the ledger solution, then this is only possible beforehand with the migration to the new general ledger in SAP ERP and subsequent conversion to SAP S/4HANA.
    However, these are two separate projects!!!! Otherwise, the users and IT are just confused about what goes where and where not.
    A change from account solution to ledger solution in SAP S/4HANA is currently not supported. This leaves only the way via new general ledger (which exists since 2004 and thus was enough time to make the switch) or green field with SAP S/4HANA.
    How green the meadow is then, is another question
    - completely green
    - with SAP Best Practices or Model Company
    - Selective Data Transition, where the SAP ERP is copied with customizing, then you can clean up, convert to SAP S/4HANA and migrate the data you still need.
    Likewise, you could still consider whether to introduce the group currency (30) in SAP ERP or harmonize charts of accounts, controlling areas beforehand and how to deal with old company codes that you no longer need. You can drag everything along or you can just tidy up. In total, over the project duration, cleaning up beforehand versus greenfield will not take much in terms of time and money.
    If you haven't done anything in FICO on your system for the last 10 - 15 years, you can't magically solve it in 1 - 2 years.
    I hope this makes it clearer.
    Regards
    Moneyfox

    Last edited 04/16/21 10:49 AM

  • Achim
    Achim
    Moneyfox:

    A change from account solution to ledger solution in SAP S/4HANA is currently not yet supported. This leaves only the way via new general ledger (which exists since 2004 and thus was enough time to make the switch) or greenfield with SAP S/4HANA.

    Hello Moneyfox,
    do you have an official source (OSS note or similar) for this?
    Thanks a lot!
    Achim
  • spitti
    spitti
    Hello moneyfox,
    in our company we are now also at the point that we want to switch from the old FI to the new S/4-Hana, but unfortunately we do not yet see clearly technically with which tools we can bring >3000 accounts from the old system to S/4-Hana, in order to be able to assign them there to the ledgers.
    How do you proceed? Are there any standard utilities? Should I write a download report that reads the SKA1, SKB1 and SKAT ... then how do I get them into S/4-Hana correctly?
    Am grateful for help and hints ...
    Greetings
    Spitti
  • kerger66
    kerger66
    Hello,
    You can simply load the accounts via the LTMC. Have you already decided on Brown- or Greenfield?
    Kessi
  • User #53167
    User #53167

    Hello Moneyfox,

    Although we only went live with SAP and SAP ERP after 2005, we still have the old ledger. From a factual point of view, we would continue to use only one ledger with the "new ledger", as our company operates and reports exclusively in Germany. In your article, you confirm that the old ledger is available in S4/HANA, but we have heard that it has been discontinued there and that its use is therefore not permitted. Where could you find this information? Furthermore, we will choose Brownfield as an approach and this means better to migrate before or together with S4/HANA?

    Many thanks and best regards

    Frank