| # Purchase order lead time The following tables list the lead time components, the calendar, and availability type that are used to plan the purchase order lead times.
Lead time component (detailed planning: with supplier, within lead time horizon) | Sequence to find calendar code | Sequence to find availability type (AT)
--- | --- | ---
Internal processing time | Purchase Office Company | Purchase Parameters
Supply time (BP) | Ship-from BP Buy-from BP Company | Purchase Parameters
Transportation time (transport part) | Means of Transport Buy-from BP of Carrier Company | COM Parameters
Transportation time (loading/unloading) | Address Company | COM Parameters
Lead time component (fixed planning: with supplier, outside lead time horizon) | Sequence to find calendar code | Sequence to find availability type (AT)
--- | --- | ---
Calculated lead time (BP) | Company | Purchase Parameters
Lead time component (no supplier) | Sequence to find calendar code | Sequence to find availability type (AT)
--- | --- | ---
Supply time (item) | Company | Purchase Parameters
Planned purchase orders are planned in the same way as actual purchase orders (the same algorithm is used). A purchase order can be planned as follows: With supplier, within lead time horizon With supplier, outside lead time horizon Without supplier The lead time horizon is planned forward from the current date. In other words, the date of the order planning run, using the company calendar. With supplier, within lead time horizon The internal processing time, the time required to ship an order, uses the purchase office calendar. If this calendar is not defined, the company calendar is used. Supply time and supplier safety time do have a three-level fall-back mechanism: Ship-from business partner calendar Buy-from business partner calendar Company calendar For more information on transportation time, refer to Transportation time. Without supplier If no supplier is present, you can use the company calendar to plan the item supply time. Related topics Calendars in Enterprise Planning Horizons and time fences Time Zones in Enterprise Planning |