Re: Need to create Table lookup at KEDR

you can set up derivation rule under Additional Account Assignment settings.

Define Derivation of Additional Account Assignments (T-code -TPM_DERIVE_ACCNT)

IMG ->Financial Supply Chain Management -> Treasury and Risk Management -> Transaction Manager -> General Settings -> Accounting -> Link to Other Accounting Components -> Additional Account Assignments -> Define Derivation of Additional Account Assignments

Please check the my blog for more details.

http://scn.sap.com/community/erp/financials/treasury-applications/blog/2015/05/07/define-derivation-of-additional-account-assignments-t-code-tpmderiveaccnt

Best regards,

Alex.