Purchase order status in MRP run

Question

Hi Gurus,
I have a doubt in MRP run.
While doing the MRP run, can there be any open PO s or is it mandatory to close them.
Can you also please suggest me on how to run the MRP.

Answer 1

Hi,
MRP Run
Purpose
The Material Requirements Planning (MRP) function enables you to plan material requirements for complex manufacturing processes. You use the MRP Wizard to create and run MRP scenarios. The MRP Wizard generates recommendations for the production and purchasing orders required to produce the final product on time and in the required quantity. You then use these recommendations to create production and purchase orders in the Order Recommendation Report.
The order recommendation cannot be issued for requirements that happened in the past (before the present day). Since the purchasing or production process cannot be completed in time, the MRP does not mix the real past data with new recommendations for the same period.
Prerequisites
●     You have defined the
○     Planning system
○     Procurement method
○     Order mutliple
○     Minimum order
○     Lead time
See also: Item Master Data, Planning Data Tab.
●     You have set the time interval between orders. See also: Define Inventory Cycles.
●     You have defined the appropriate items as non-production bills of materials (if required). See  also: Item Master Data, General Tab.
●     You have defined default warehouses. See also: Define Warehouses.
●     You have defined forecasts. See also: Forecasts.
●     You have selected the Consume Forecast option to make the system exclude existing sales orders from the forecast. If this is not selected, the forecast considers existing sales orders as an additional requirement. See also: Sales Order.
●     You have set the planning definitions. If you chose Consume Forecast, you have defined the consumption method, days forward and days backward. See also: General Settings, Inventory Tab.
Process Flow
       1.      Start the MRP Wizard.
       2.      Create a new MRP scenario or select an existing one. (See also: MRP Wizard: Select New or Existing Scenario.)
       3.      Define the parameters for your scenario, such as the planning horizon and item details.
You also choose your display preferences. (See also: MRP Wizard: Scenario Details.)
       4.      Define the data sources for requirements that you want to include in your MRP scenario.
For example, you define whether you want to consider the existing stock or the minimum stock level. You can also include a predefined forecast. (See also: MRP Wizard: Data Source.)
       5.      Save the scenario or run it.
After you run the scenario, the system displays the MRP Results.
If there are red figures in the result table, solve the problem and re-run the MRP.
       6.      Analyze the MRP results. You can display the final stock quantity before the MRP run or after it.
       7.      Save the recommendations and exit the MRP Wizard.
Result
After completing the MRP Wizard, you still need to create the purchase and production orders in accordance with the MRP recommendations. See also: Order Recommendation Report.
Hope this will help.
Reward Point if helpful
Thanks,
Raja