parameter id in cs03

hi everyone again!

i am having the same problem in CS03.

i need to transfer change number and clear the field valid from.

the type of the change number is char12.

everything works o.k accept from the aennr

and the field valid from which i didn't use set parameter id.

the code is:

set parameter id 'MAT' FIELD MATNR

set parameter id 'WRK' FIELD WERKS

set parameter id 'CSV' FIELD STLAN

set parameter id 'AEN' FIELD AENNR

call transaction 'CS03'.

regards

yifat