If you want to capture different profit center at portfolio level in financial transaction of treasury deals at the time of posting of deals. For these, you can set up derivation rule under Additional Account Assignment settings where source field is Company Code, Portfolio and Target fields: Profit Center.
The configuration steps:
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 define source fields and target fields.
Then please define the conditions as your business requirement.
After this, please maintain the rule values like below screenshots.
Create deal with Portfolio 1, and Company code 0001
Post the deal by transaction TBB1, you can see the field: "profit center" has been filled.
Related notes:
1755316 - TRAC: Business Area not filled from acct.assign.reference
1731454 - Profit Center determination using OTC portfolio not working