Run Gross Requirement Calculation

Explanation

Use the Calculate Gross Requirements menu option to perform the gross requirement calculation, which analyzes the item structure and determines when the items must be available to be able to assemble the project product delivery structure. All items without an activity belong to the activity registered on the nearest item upward in the structure. Items in substructures of standard planned items, project MRP supplied items, or items that do not belong to any structure are not included in the calculation.  Items in substructures of standard planned items or items not belonging to any structure are not included in the calculation. It is recommended that you run the Warning Info menu option before you start the calculation. If you run the calculation in batch mode, it is executed as a background process. The status of the background job can be viewed by selecting Background Jobs in the General folder of the IFS Navigator. Parts with the Part Status flag in inventory set to Demand Not Allowed will never be calculated.

Prerequisites

• The correct MPL part code must be used on the project items and the standard parts in IFS/PDM Configuration. See MPL Part in Project Product/items.
• The item you want to calculate must have a structure, and at least one item must be connected to an activity. See Project Product/Requirement Activities.
• A top item must have been entered for the delivery project in Delivery Projects.

System Effects

• The result of the previous gross requirement calculation is removed.
• A new procurement list is generated, starting with the project top item and then moving down in the structure until an Mp-demand item is found. For each item, the following checks and calculations take place:
   
  • The total quantity for each item is calculated (item quantity multiplied by the quantity of the parent item).
  • The demand date is set for each item based on the early finish date of the nearest connected activity upwards in the structure and the lead time in workdays for each part/item on the different levels accumulated. The lead time is fetched from the inventory part on the project delivery site, or from the engineering part if the inventory part lead time returns 0 (zero). The project's calendar is also taken into consideration when calculating the demand date.
  • If an item does not have an activity connected and none of its ancestors has an activity, a warning is given and is indicated by the MPL calculation flag.
  • The result of the calculation is inserted into the material procurement list for all items with the acquisition code set to Procurement.

Window

Project Product

Related Window Descriptions

Project Product/Demand/MPL

Procedure

1. Open the Project Product window and query for project for which you want to run the gross requirement calculation.

• It is recommended to view the Warning Info window prior to the calculation to get an overview of items with missing activities and items that are not going to be procured with the current settings. Use the Warnings menu option.

2. Open the Project Product/Demand/MPL tab and select the Calculate Gross Requirements menu option to start the calculation. If you want to run the calculation in the background, select the Run the Procedure in Batch Mode check box.
3. Click OK.