CHANGES IN MATERIAL MASTER
I created a material after that I changed the description. So in T-code- MM03 I got what is the old & new value of material description through envrionment menu & display changes. There are certain material available which was changed but did not appear in display changes through environment menu that what was the old value & new value. what is the cause.
Go to MM04 T.code and give the material number it gives all the changes and select the particular changes and it will give the detailed chage history like old value and new value.