This is a unique requirment I have come across.
On posting the reservation ( MIGO - Goods Issue ), if the quantity has reached the reorder point after saving, it should display a message below, MATERIAL TO BE ORDERED.
Material code - 198345
Re order point in material master - 2
Stock before posting - 4
Reservation qty - 3
So once we do the posting, the stock will come down to 1. As this is below the re order point, display a message below, MATERIAL TO BE ORDERED.