Understanding MPS Generation for Processes

After you generate a master schedule, use the Time Series - MPS version of MPS Time Series and the Message Detail - MPS version of MRP/MPS Detail Message Revisions to review the time series and messages that the system generates.

Many processes produce multiple co-products. In each time period, whichever co-product has the greater demand is the pacing co-product. For example, a process might produce both plastic and ethylene glycol (antifreeze). If greater demand for plastic in a time period exists, the system plans for the process based on the demand for plastic, which might result in excess antifreeze production.

The time series is a record of time-phased supply-and-demand netting for selected co-products and by-products. Co-products that are fully satisfied by the process do not receive order messages. Instead, the system creates warning messages for co-products that are planned by a process.

Note: Process item numbers do not have a time series.

After you have defined the stocking types and co-products and by-products for the process, you can generate and review a master schedule of all process work orders and output. This output consists of time series and messages for the co-products and by-products.