Calculate MS Level 1 for Single Part

Explanation

This activity is used to calculate MS level 1 for a single part. This calculates forecast and actual demand, traces orders, and provides action proposals. The master schedule is calculated and created from forecasts on level 0, the forecast you enter on level 1, and the actual backlog of orders. This gives you quick access to the results of the forecasts you entered.

Prerequisites

To perform this activity, you must have entered master schedule level 1 parts and registered forecasts. The registration of level 1 parts can be handled manually or automatically from the level 0 calculation.

System Effects

• The system's calculation suggests new orders and actions for existing orders.
• MS results in a gross demand, which forms the basis of MRP.
• While the calculation is underway, an on-hand analysis is made. You can view it in the Calculated Balance field in the MS Level 1 Part window.
• At the start of each calculation, period 1 is updated. This means that the system considers the run date. If the program was run on Tuesday and the period used is a five-day week that includes Friday, then period 1 will be from Tuesday to Friday. If the program is run on Wednesday, period 1 is from Wednesday to Friday.
• The physical quantity on hand is updated during calculation. This value is used for calculating quantity on hand development and available to promise.
  
  Note: In the master schedule Level 1 calculation, manufactured/acquired split, supplier split ,standard multiple quantity and lot sizes will be considered.

Window

MS Level 1 Part

Related Window Descriptions

MS Level 1 Part
Calculate MS Level 1 Part

Procedure

1. Open the MS Level 1 Part window.
2. Search for the part for which you want to run the master scheduling level 1 calculation.
3. Right-click on the header, and click Run MS - One Part. The Calculate Master Scheduling Level 1 for a Single Part dialog box is opened.
4. Verify that the site, part number and project PNG (if it is project master scheduled part) are correct.
5. In the MS Set field, enter the master schedule set for which you want to run the calculation. Click List to select from available sets.
6. In the Run Date field, specify the date on which you want to perform the calculation.
7. Select the Run integrated with CRP check box if you want master scheduling to use the CRP calculation in order to determine the start date for master schedule receipt.
   Note: When the Run integrated with CRP check box is selected, the start date is more accurate because CRP uses operations and actual work center data to determine the start date, whereas MS normally uses the routings variable and fixed lead time to determine the start date. Also, if this check box is selected, material will be more accurately planned to be available just before the connected operation starts. When this check box is not selected, the work center calendar is not considered and the operation connected or unconnected material are planned to be supplied just before the start date of the receipt.
8. Click OK.