I am having a very strange mrp problem and that is
I created a material with all mrp1and mrp2 requirement,created the info record and source list for that material.I created a reservation for that material which in turn created the deficiency when I did the MD04.I run the MD03,as per re-order point and fix lot size two Preqs created( vendor was not shown in the Preqs even though I established the source list for the material?).I change these Preqs into PurOrds and did the Gr.Every thing fine till here all changes happened in material requirement list(MD04).Now I did one more reservation and created the deficiency again and run MD03 again with a message that mrp done but this time when I went back and checked MD04, there is no Preqs shown and deficiency remained same as was before. I did the same exercise on several material and every time I am having the same problem as the 2nd time the Preqs don't show in MD04. Please help me as I check upto my knowledge but unable to resolve this one.