Perform Selective MRP

Explanation

Use this activity to run MRP for selected set of part(s) or desired low levels.

Prerequisites

• BOMs must have been defined for the parts, and lead times for both the purchased and manufactured parts must have been established. MRP only uses the existing product structure with the alternate " * " indicated by an asterisk(*). 
• You can execute selective MRP for sales part in customer order line, part for which the MRP action messsage is raised in previous MRP run or MS Level 1 part directly. In order to do that customer order line, MRP action message or MS Level 1 part should be available.
• To perform MRP for master scheduled parts you must first have created a master production schedule using IFS/Master Scheduling.
• To perform MRP for project planned parts you should first run PMRP.
  
  Note: MRP does not process parts with planning methods B - Order Point Planning, C - Replenishment Level, M - Manufacturing Cell Part or N - Next Level Demand. Selective MRP is not available in project MRP. Selective MRP plan part(s) in single site.

System Effects

• Selective MRP will be performed and supplies will be planned for the inventory part(s) and their components.

Window

Perform Site MRP

Related Window Descriptions

Perform Site MRP
Selective MRP Run Criteria

Procedure

You can execute selective MRP either by direct execution (Procedure A) or by scheduling the task to execute as a background job (Procedure B). 

Procedure A:

1. Open the Perform Site MRP window.
2. In the Site field, enter the site for which you want to run a single-site MRP. Click List to select from the available sites. If you leave the field blank, the MRP process is run for all the sites to which you have access.
3. Select the date on which you want MRP to be executed. The current date is used by default.
4. If you want to stop the MRP process when an error occurs, you can select the Stop MRP on error check box.
5. If you do not want to create messages for phantom part dependant demands, you can select the Don't create messages for phantom part dependant demand check box.
6. If you want the MRP process to create safety stock replenishment orders by considering the MRP run date, select the Plan Safety Stock Receipt Considering MRP run Date check box. MRP calculates Wanted Receipt Date of a purchase requisition line by adding lead time (according to distribution calendar) to run date. If the primary supplier is defined for that part then it will use internal inspection time and manufacturing lead time from the supplier for the purchase part record, external transport lead time, transport lead time and internal transport lead time from the supply chain matrix and the delivery route connected to the supplier. MRP calculates Due Date of a shop order requisition by adding lead time (according to manufacturing calendar) to run date. If there is any event date earlier than the calculated Wanted Receipt Date or Due Date, then MRP creates safety stock on that date even this check box is selected. If it is not selected, safety stock replenishment orders will be created on the event date itself.
7. If you want use an excess of alternate components to supply the demand of the primary components, instead of creating MRP planned supply, select the Plan Alternate Component check box.
8. Select the Run Integrated with CRP check box in order to use the CRP backward scheduling logic to schedule the shop order requisitions generated from the process. If the Run Integrated with CRP check box is selected, CRP backward scheduling logic will be used to schedule shop order requisitions generated from the process. As a result, the start date of the requisitions/receipts generated will be more accurate.
9. If you want to get the default values defined by the administrator in the Database Tasks window, click Default.
10. To perform a selective MRP, click Selection and open Selective MRP Run Criteria dialog box. Selective MRP will enable you to run MRP for the selected set of parts from the site specified in step 2. Use this dialog box to specify the selection criteria. You can use wild card characters in these fields. If you enter multiple selection criteria, parts that fulfill all the conditions will be selected to run the selective MRP. If you want to run selective MRP for low levels (for example 3) then use 3 in low level code field and run MRP. Then analyze the results and do the necessary adjustments to level 3 results. Run MRP for low level 3..4 (entering 3..4 in low level code field) again to plan the next level and continue the process up to the level you want.
    
    Note: It is advisable to perform selective MRP for low levels without any other selection criteria. For example, even though running selective MRP for low level code n..n+1 only for the product family PF1 will yield correct results, but result would look like confusing. So planner has to be cautious when analyzing the results.
11. Click OK.

Procedure B:

1. Open the Perform Site MRP window.
2. Click Schedule to open the New Database Task Schedule window. Set the required scheduling parameters and save. Scheduled tasks can be seen in the Scheduled Database Tasks window.
    

Note : If the corresponding inventory part is a master schedule planned part, then MRP will not plan the part and components. First you need to run master scheduling and then right-click and execute Run MRP for components from MS Level 1 window.