Overview
MRP Planning uses Lead Times to create the schedule for the material plan. The different Lead Times create date-driven milestones in the supply order process. MRP Planning uses the Lead Times to determine the start of the process and to schedule the incremental steps leading up to the completion of the process. Lead times determine the date activity must occur to satisfy the supply plan. These dates are visible to the user and intended to draw attention to the actions (create and manage work orders, release purchase orders, etc.) required to manage the supply plan.
Work Order Lead Times only affect Work Order Lead Time calculations. Purchase Order Lead Times plus Vendor Lead Times only affect purchase Order Lead Time calculations.
By default, many of the Lead Time fields come from the associated Inventory Commodity Code assigned to the item. These individual fields may be over-written at the item level if needed.
NOTE It is important to note that when MRP is planning new supply dates, based on the defined lead time values, it also considers Shop Calendar Days from the Rootstock Shop Calendar, and will not include non-Work Days in the calculation. For example, if a lead time is 7 days and there is a Saturday and Sunday in the 7-day window, the actual date will push 2 extra days because of the Saturday and Sunday. In other words, with Shop Calendar default days values set, a 1-week lead time should be entered as 5 Days.
Fields
Lead Time, WO Firm: The number of days from the date of the MRP run until the planned Work Order is firmed. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, WO Release: The number of days required from the time a WO is firmed until it is released to the Shop Floor. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, WO Pick: The number of days required to pick the material from the stockroom and stage it for issuing to the manufacturing floor. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, Component Ship: The number of days required to pick and transport this component item to a Subcontract Vendor. If the checkbox is checked, this value comes from the Commodity Code; if unchecked, user can specify this value.
Lead Time, Vendor Ship: The number of days required to ship this item from the Vendor to the Receiving Dock. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, Receiving Inspection: The number of days required to process an item through Receiving / Inspection prior to it reaching the stockroom. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, Manufacturing: The number of days required to process a WO through the manufacturing process. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, PO Req Firm: The number of days from the date of the MRP run until the planned purchase order requisition is firmed. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, Inter-Site Transfer: The number of days required to transfer material within a Division from one Site to another Site. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
Lead Time, Lot Issue Expiration: The number of "shelf-life" days for the given Lot Item that is factored into the overall lead time, representing the number of days in advance of the expiration date that the item is required to be issued. If the checkbox is checked, the Commodity Code value is used; if unchecked, an override must be set for the Item.
SEE ALSO
Inventory Item Master
Inventory Commodity Code
Inventory Commodity Code Lead Times Tab
Expiration Behavior for Lot Controlled Items
