No valuation exists for material during billing document VF02

Hi people,

I already saw some material here about my doubt: "No valuation exists for material during VF02".

I have checked the transactions:

OMWM: It is activated

OX14: the same above

OMS2: The material type is Non-stock goods. It means, all of the fields there are in this transaction is not activated

So I would like if you have some other suggestion what is the reason to receive this message considering this kind of material, at the moment we try to release to Accounting.

The detail of the messenger is:

"There is no valuation (for instance periodic unit price or cost component split) for material/plant xxx.

Thanks a lot!

RN.