SAP Offers three options .
1 Material is blocked at first read
2.Material is blocked when invoice is simulated
3.Material is blocked when invoice is posted
Right now we do have a setting on 1 but it its putting block for much longer time.
I want to understand what are the scenerios in which option 2 and 3 can be used .
I tried to use 2 & 3 but practically i could not notice any block at all.
Can any one of you please explain when and how I can use the same.