Last Time Buy Date

The last date that a procurement order can be placed for the selected part.

Decay Start Date

The date after the Last Time Buy Date when the part usage starts to decline rapidly.

Field Support-To Date

Date after the Last Time Buy Date when inventory will no longer be deployed to the field locations.

Support To Date

The date when the selected part will no longer be supported from the company's inventory. This date should be the last of the product support-to dates for the product of which this part is a component.

Return Wash Rate

[This field only appears for repairable parts.]

Return Wash Rate is a factor (percentage) used to forecast returns. Forecasted returns are normally used in time-phased planning to project on hand bad quantities. It is normally calculated as:

Forecast * (1 - Return Wash Rate)

Repair Wash Rate

[This field only appears for repairable parts.]

Repair recommendation quantities are factored by the Repair Wash Rate (which is a percentage). For example, if the Repair Wash Rate = 10% and 10 good units are required to meet demand, then 11 units of on hand bad will be required and assumed used on the assumption that one unit will wash out during the repair process.

Salvage Rate

The percentage of all the component parts from the de-commissioned products that can be salvaged for a particular part number. The salvaged parts will be sent out for repair.

Slice Forecast Decay Rate

The percentage rate at which demand for the part will decline by slice. Used when making the LTB recommendation.

LTB Slice Decay Rate

The calculated decay rate using the current slice's demand history.

The calculated decay rate based upon demand history data in the time period of:

[Today's date or Support-To Date, whichever is earlier] - Slice Number set in Last Time Buy Decay Rate Parameter

Calculated for every part with an LTB Record.

LTB Actual Decay Rate

Calculated decay rate based upon demand history data in the time period from Decay Start Date to Support-To Date or today's date, whichever is earlier.

Actual Decay Rate is calculated for all parts in Last Time Buy (after recommended order quantity has been placed and Last Time Buy Status is Done).

LTB Decay Rate Standard Deviation

The standard deviation of the LTB Actual Decay Rate or the LTB Slice Decay Rate. When Calculation Type is Group and Actual is selected, this is the standard deviation of the LTB Actual Decay Rate. When Calculation Type is Group and Slice is selected, this is the standard deviation of the LTB Slice Decay Rate.

Current On-Hand Quantity

The number of Last Time Buy parts in stock.

Current On-Order Quantity

The number of Last Time Buy parts in the procurement pipeline.

Current In-Repair Quantity

[This field only appears for repairable parts.]

The number of Last Time Buy parts in the repair pipeline.

Monitor To Date

The date to stop monitoring demand for the part.

High Limit

Low Limit

The percentage of part demand to use to create a maximum (high) and minimum (low) limit. When a limit is exceeded, an alert is generated, warning you that you may end up with too much or too little stock.

Early Used Up Limit (Days)

The Used Up Date is the projected date when LTB part inventory will run out. This date should be the same as the End of Service Date if all goes as planned. However, if the Used Up Date is earlier than the End of Service Date, it becomes the Early Used Up Date.

The Early Used Up Limit is a threshold you can specify. When this threshold is reached, a record is posted to the Review Board's Lifecycle tab. For example, if you entered an Early Used Up Limit of 50 days and the Used Up Date is more than 50 days earlier than the end of service date, a record is posted to the Review Board Lifecycle tab.

Excess at the End (Units)

The number of parts left over at the end of the part's life.

Recommended Quantity

Servigistics' recommendation for how many parts to procure for the Last Time Buy.

If you want to override the recommendation, enter the override amount in the box.

Total Forecast

The Last Time Buy required quantity. It is the total cumulative Last Time Forecasted Quantity from the Last Time Buy Date until the End of Support Date. If Decay Start Date is set earlier than the Support to Date, the original LTB Forecast Amount in the periods after the Decay Start Date are ignored and the Total Forecast is calculated as follows:

Total Repair Forecast

Total cumulative last time forecasted quantity that can be repaired. This quantity is offset by the Last Time Buy Required Quantity.

Current Inventory Balance

The number of Last Time Buy parts in stock

Roll Up Inventory

The current existing inventory from the child locations that will be used to offset the Last Time Buy Required Quantity.

Need

The Last Time Buy Quantity after netting Total Repair Forecast, Current Inventory Balance and Roll Up Inventory from Total Forecast. It is calculated as Total Forecast - Total Repair Forecast - Current Inventory Balance -Roll Up Inventory

Excess Used

The excess amount modified by the Last Time Buy Recommendation process at any given part to meet child part requirements

LTB Method

When Global Last Time Buy is selected no other location can plan a Last Time Buy for that part.

When Allocate To Locations is selected, Servigistics allows planners to create replenishment actions to distribute the procurement to field locations when the Last Time Buy order is executed.

LTB Status

The status of the Last Time Buy process.

Last Time Buy Custom 1-20

Custom fields that are mapped to IPCS_LTB. You can modify these fields by entering text in the text boxes.