Hi Pmr,
Always please note that changes should be made in SYSDEV only and then tranport to SYSQA.
Now your problem is in editing the query in SYSDEV right.
Have you tried using query designer?
coming to your issue :
basis team : After they addedd those roles, Now I see the error 'BEx query transport not available or not suitable'
to address this follow Phani / Anshu suggestion in SYSDEV
hope it helps.
Thanks & regards,
Sudhir