Try as mentioned below
PROMPT(SELECTINPUT,%SOURCECATEGORY%,,"Enter Source Category","%CATEGORY_DIM%")
PROMPT(SELECTINPUT,%TARGETCATEGORY%,,"Enter Target Category","%CATEGORY_DIM%")
Hope it helps...
Try as mentioned below
PROMPT(SELECTINPUT,%SOURCECATEGORY%,,"Enter Source Category","%CATEGORY_DIM%")
PROMPT(SELECTINPUT,%TARGETCATEGORY%,,"Enter Target Category","%CATEGORY_DIM%")
Hope it helps...