Manual Inspection Lot for Inspection Lot Origin '04'

Dear SAPians,

We are presently getting Automatic Inspection lot with the Closing of Process order against Inspection Lot Origin '04'. Now there is a requirement came to generate Manual inspection lot against Inspection Lot Origin '04' but System is STOPPING US and giving an Error Msg. You Cannot Enter A Material for the Specified Origin. I feel that there is some customizing issue. Please suggest.

Thanks