MIRO behaviour on qty and price

Question

Hi Consultant,
Need advice and confirmation on below scenario during MIRO if my understanding is correct.
1) scenario 1
PO 100 unit at $1
GR 100 unit at $1
IR    40 unit at $1'
during GR
dr inventory 100
cr gr/ir 100
during IR, system will post despite different from GR. System will treat it like partial
cr vendor 40
dr gr/ir 40
correct?
2) scenario 2
PO 100 unit at $1
GR 100 unit at $1
IR    40 unit at $2 (in vendor invoice stated $2)
during GR
dr inventory 100
cr gr/ir 100
during IR, due to price difference, the difference will go to prd
cr vendor 80
dr gr/ir 40
dr prd 40
3) scenario 3
PO 100 unit at $1
GR 100 unit at $1
IR   120 unit at $1 (in vendor invoice stated 120 unit)
during GR
dr inventory 100
cr gr/ir 100
during IR, if quantity more than GR, i cannot change quantity as need to set off completely with GR. The balance i need to book where?
cr vendor 120
dr gr/ir 100
cr to where ? 20
Thanks

Answer 1

Hi consultant,
meaning if GR 50 unit but IR vendor invoice is 60 unit, we still need to post 60.
in this case :
migo
dr inventory 50
cr gr/ir 50
miro
dr gr/ir 60
cr vendor 60
1) system will post despite gr/ir different by 10? system will still create 57# document despite gr/ir mismatch?
2) mr11 is to clear the dicrepancy on gr/ir account?
thanks
rgds