purchase order

dear gurus,

i am getting a problem in releasing purchase order for non valuated material .

i have created non valuated material without accounting view.

whiile creating purchase order i am getting error message as

" Account assignment mandatory for material 02021495X "

"There is no provision for value-based inventory management for this material type in this plant. Account assignment is thus necessary "

i have crossed checked settings in spro , setting is ok

is there any other setting pl confirm

suhas inamdar