The actual range of coverage specifies how long the available quantity of a material at a particular date or in a particular period can cover the requirements in subsequent periods. This is specified in number of days.

The system calculates the actual range of coverage both during the planning run and in the stock/requirements list. It can then be displayed in the Period totals display in the MRP list or in the stock/requirements list.

The system also displays the actual range of coverage in the planning table for repetitive manufacturing.

The actual range of coverage is calculated for all periods that are displayed in the Period totals display. The available quantity on the particular date is used to carry out the calculation. This provides the work scheduler with an overview of the ranges of coverage in the future.

In contrast, the days’ supply only displays the current situation as it is calculated using the current available quantity.