Getting Error on AIBU while settling AUC

Hi Guys,

I am trying to settle AUC as line item settlement but after doing AIAB, when i am executing transaction AIBU am getting error:

SYST: You cannot determine the period for rule 02 to 30.06.16

While i have checked the OAVH & OA84 both but do not find any missing configuratio on this. Can somebody give solution.

Rgds,

Achin