Hello Mahmoud,
From here
SPRO -> Financial Supply Chain Management -> Treasury and Risk Management -> Transaction Manager -> General Settings -> Accounting -> Link to Other Accounting Components -> Define Account Determination (tr. SM34 -> TRACX_ACC_DETER)
you can find that account determination depends on
- Valuaton area - different accounting principles
- Account assignment reference (AAR) - read help.sap.com
- Currency - the currency of your transaction.
AAR can be set for transaction manually^
- In EDIT mode foloow menu Environment -> Position indicator
- SAP Menu -> Accounting -> Financial Supply Chain Management -> Transaction Manager -> Money Market -> Master Data -> Position Indicator ->
- TPM3 - Assign Account Assignment Reference
- TPM56C - Change
Automatically
- IMG -> Financial Supply Chain Management -> Treasury and Risk Management -> Transaction Manager -> General Settings -> Accounting -> Link to Other Accounting Components -> Define Account Assignment Reference Determination (OTC Transactions) (tr. TPM32) - for more about derivatio read articles
If you use Move step you can choose from many parameters to derive the right AAR:
That's it!
So, account determination depnds on valuation area, currency and AAR. You need to create several different AAR to assign many GL accounts. And assignment of AAR to your transactions depends on many other parameters.
If you tell us what exactly you need, we'll help you.