Replenishment Lead Time 
Definition
Total time for the in-house production or for the external procurement of a product. In in-house production, the replenishment lead time is determined to cover all BOM levels.
Use
As a rule, the replenishment lead time is used in the availability check. If the replenishment lead time is not maintained, then the system uses the in-house production time or the planned delivery time to determine component availability. If both are maintained, the in-house production time or the planned delivery time have higher priority than the replenishment lead time.
Integration
The replenishment lead time is interpreted as follows:
- In the case of planning at component level, the replenishment lead time is reduced to the in-house production time.
- When planning at finished product level, the replenishment lead time is considered to be the production time of the overall structure. To react quickly to customer demand, ensure the following:
- Planned independent requirements are maintained at finished product level.
- Sales orders are entered a long time in advance.