Trying to do the same etc include journal line description. Found some notes and tried doing the below setups ....
Did the followings ...
1 Accounting Setup manager > Subledger Accounting Options > Cost Management > Update Accounting Options >General Ledger Journal Entry Summarization to No Summarization .
2. In SLA Cost Management...
-Define new JED, selecting PO number.
-Define new JLD by copying the existing RCPT_REC_INSP and DELIVER_EXPENSE and attached the new JED.
-Define new AAD by copying from the existing COST_MANAGEMENT and attached the newly created JLD.
Lastly, enddate the seeded SLAM and add a new AAD assignments and attached to the newly created AAD.
But upon validating the accounting definition, it shows invalid and though enabled the fnd log, still do not see any message.
Appreciate any help.