Defines a date formula to indicate a safety lead time that can be used as a buffer period for delays in the production, assembly, or purchase replenishment lead time.

For example, if a vendor often delivers late, then define a safety lead time for items from this vendor so the planning system can compensate for delays.

When calculating order and order proposal lines, the safety lead time is added to the lead time for both forward- and backward-scheduled orders.

Additional Information

The following date fields are affected on the order or order proposal lines:

Line Calculation

Production order line

Ending Date + Safety Lead Time + Inbound Warehouse Handling Time = Due Date

Assembly order line

Ending Date + Safety Lead Time + Inbound Warehouse Handling Time = Due Date

Purchase order line

Planned Receipt Date + Safety Lead Time + Inbound Warehouse Handling Time = Expected Receipt Date

Note
The safety lead time between items on a multilevel production order is ignored.

For transfer orders, an item's safety lead time is not included directly in the calculation of the transfer order receipt date. However, safety lead time can influence the receipt date of a transferred item because it can affect any replenishment purchase or production order at the transfer-from location before the transfer starts. For more information, see Design Details: Transfers in Planning.

If no value is specified in the Safety Lead Time field, then any value that is defined in the Default Safety Lead Time field applies.

Tip

See Also