The disclosure provides a method, software, and system for monitoring substances. In one embodiment, a method includes identifying a first document associated with a business process of an enterprise. A first volume of a substance based, at least in part, on the business document is determined. A second document associated with the business process of the enterprise is identified. A second volume of the substance based, at least in part, on the business document is determined. The first volume and the second volume is aggregated. A file associated with the business process is updated with at least the aggregated volume.