A computer program product tangibly embodied in an information carrier includes instructions that, when executed, perform operations that modify stock levels of a storage location in a logistic environment system. The operations include receiving information indicating a stock level change at storage location database objects that each represent a storage location for stock in a logistic environment. A storage location database object has associated with it a rule, a stock amount value specifying an amount of stock for the storage location, and a threshold that indicates a stock level to be maintained for the storage location. The operations also include determining, using the rule, if the stock level change would cause the stock amount value to cross the threshold, and if so, generating a request to modify the amount of stock at the storage location so that the stock amount value does not cross the threshold.