Determination of Account Assignment ref., using Portfolio as a condition

Hi,

I would like to ask your experience in determination of Account Assignment Reference, using Portfolio as one of conditions - does it worked for you?

E.g. if I base Acct. Assign. Ref. determination on other conditions, like Product type, Transaction type, also Classification of Bond, then it works perfectly, however if I add Portfolio as condition, them during creation of deal, system does not determines target Acct. Assign. Ref. How you would suggest to manage that issue if I really need to use Portfolio as one of criterias for determination?

thanks.

Rgds,

Renatas