Please calrify the following "To use this solution New AA, prerequisite is the use New GL Accounting with Ledger Approach. Prior
to New Asset Accounting",
I am on Classic GL with Accounts approach and planning to migrate to Simple finance which will land me in tecnical new gl after completing all prerequsites/ migration/post migration activities along with migration of classic AA.....Is it enough for me to use New AA ? or prior to that I need to first migrate to New gl in Ecc 6.0?
Please clarify this part of using new AA while migrating from classic GL to S4 GL (I dont need any functionalities of new gl presently)
To help you take a look into 2129306 - Check Customizing Settings Prior to Upgrade to S/4HANA Finance or S/4HANA note and also check the RASFIN_MIGR_PRECHECK program documentation before to run it.
You can migrate to S/4 finance from classic GL, you don't need to do it separately(if you are not going to activate some new functionality like splitting, parallel ledger and so on). And also you can migrate to new FI-AA during this migration (classic GL->S/4 finance). But you need to activate EA-FIN business function before it
SAP recommends to activate FIN_AA_PARALLEL_VAL of new GL to use parallel valuation for new AA.