Hi Narendra,
As i understand the GUID_CONVERT pads zero's to make it 32 cahracter. It does'nt really matter how it is done(through XI or GUID_CONVERT) as long as the end result(GUID value) is same , the BAPI_OPPORTUNITY_GETDETAILMUL should return the same resulsts in both the cases .
if my above understanding is wrong then you need to go for a wrapper or some other method to call GUID_CONVERT.
hope this clarify's your doubt.
Regards
Anand
