Requirement Methods

As already discussed, the Requirement Method parameter in the Product Master can be used to signal stock shortages in the system and allow it to deal with those shortages. The following methods are allowed in CREST ERP

Drop-ship – Ignore
Automatic For Every Sales Order: This means a separate Requirement is created for individual sales order, instead of aggregate Order quantity
Requirement Not Created : No Requirement is automatically created
Requirement For Order When ATP Reaches Minimum Stock For Product-Facility:
When ATP Reaches Minimum Stock For Product-Facility: A Requirement will be created automatically when the quantity Available To Promise [ATP] of the Product reaches or drops below the Minimum Stock Level set for the Facility.
When QOH Reaches Minimum Stock For Product-Facility: A Requirement is created when Quantity On Hand [QOH] reaches or drops below Minimum Stock Level set for the Facility

We will look at the real-life operation of these in the following sections