General Description of Item Lead Time
1. Item Lead Time is the time that passes between releasing a planned order
--- for purchasing or manufacture , until the goods are on the shelf.
2. Notes :Item Lead Time adds to Vendor Lead Time if any exists.
---That's because when a vendor ships from stock only picking and shipping lead time exist.
--- If that same vendor makes to order , then these items require additional lead time.

Example of Item Lead Time
1. Here are Calc PO's for an item with a lead time of 1 week.
1. Here are Calc PO's for that same item with a lead time of 2 weeks.