The following are the Pre Requisites before running MRP.
Define MRP types
Path: SPRO -> IMG -> Materials Management -> Consumption-Based Planning -> Master data -> MRP Types
This will determine the MRP procedures, forecast usage
and select automatic calculation of either safety stock / re-order
point
Define MRP areas
Path: SPRO -> IMG -> Materials Management -> Consumption-Based Planning -> Master data -> MRP Areas -> Define MRP areas
We define this for combination of plant, SLoc and Vendor.
Note: MRP area and plant must be the same.
Maintain MRP relevant data at Plant/SLoc level using TCode MM01
- MRP 1, MRP 2 and MRP 3 are for plant level data:
You need to maintain here the MRP Type, forecast model and the period indicator.
In MRP1, you can maintain the Re-Order point and Lot Size.
In MRP2, you can maintain Safety stock and planned delivery time parameters.
- MRP 4 is for SLoc level data.
Create MRP profiles (using Tcode MMD1)
Using this, you can maintain general parameters for materials. The MRP parameters defined here will be independent of the material master.
Set material status for cross site / plant in material master.
Material status for Cross site will be assigned in the u2018Basic datau201D view whereas Material status for u201CPlantu201D will be assigned in MRP 1 view.
After having all these pre-requisites maintained, you can run the MRP as Single Item or Multi Level. Check TCode MD01 / MD02 / MD03 / MD04
