Validation for CoCode at WBS element

Hi All,

I am writing a validation to have a identical company codes at level 2 and level 3 WBS element for particular project profile. But this validation does not work. Below is the validation.

Prerequisite:

PROJ-PROFL= '10001' AND PRPS-STUFE ='2' AND PRPS-STUFE='3'

Check:

PRPS-PBUKR=PRPS-PBUKR

Error Message:

Cocode are different.

Please let me know what is going wrong.

Thanks in advance.