Thanks to the both of you.... So, basically what you are saying is I should take the internal values of PSTYP and the conversion exit should happen in the BAPI to make it the external display value to be passed to Purchase Order ( item category field) ?
Just so we're all saying the same thing....
Here is the internal values I see i table using T163
Althought table t163x & t163y have both fields PSTYP the field EPSTP, EPSTP does have a drop down value available like PSTYP, it just maps to the values of what PSTYP
Where I see the drop down values I want is under configuration area
SPRO -MM - Purchasing -Purchase Order - Define Doc Types - ( highlight item and click on allowed item category)
So conclude, you believe I should have them use data element PSTYP and then a conversion exit should be required in the BAPI Create to make sure the actually value is passed to the item category on PO?
Appericate inputs!