sales Text of material master using create_text

Hi All,

I need to update Sales Text field for existing materials in material master.

(mm02 ->sales Text view >sales text)

This text will be of 40-50 char length.

Now if i use CREATE_TEXT with following paramters, no text is getting updated in the material master.

Import Paramters:

FID: 0001

FLANGUAGE: EN

FNAME: <material no><sales org><Dist channel>

FOBJECT: MVKE

SAVE-DIRECT : X

FFORMAT: *

Tables:

FLINES: <Sales text>

After execution of this FM, no error message is popped up.

Is it the right way to update the sales Text or any changes need to be done in defining paramters in Function module?

Kindly Guide me.....

Regards

Pavan