HI,
select the grouping option - only necessary objects
drag the 0PUR_C04 or infoObject 0MMPUR_CHA01 in to right side panel.
install the objects.
we know purchase data source like HDR,ITM,SCL data sources.
if you select the indata flow before - it will install the all objects like data soruce and info source and related obejcts.
if not install properly use the only necessary objects and try to install.
Thanks,
Phani.