Whenever a global or line item special discounts the entire amount of the sale, you have the option to require a valid person who has authorized the discount, and a valid reason for the discount. For more information on this functionality, see How to enter generate a list of persons and reasons.

In order to use this feature, an operator must be assigned sufficient security in order to authorize the discount. This is done in SysManager > Preferences > Security; edit the selected security role that applies to the operator.

If your operator has sufficient security to apply a comp discount, your operator is prompted for the following: