In the last section of the screen, you can enter a code for the activity or activities that should be blocked. You can block a quotation, purchase order, goods receipt or all functions. You can also enter a reason for the block. As a result, the material-vendor combination is blocked from the activity or activities until you remove the block.
You enter blocking information if you want to prevent temporarily a certain function from being executed for a material-vendor combination as a result of a deterioration in the quality of the material.