SAP PP – MRP Execution

MRP Elements: Requirements
IndReq – independent requirements (created manually for finished product via MD61)
CusReq – customer requirements (created manually for product via MD81)
DepReq – dependent requirements (generated for assembly automatically from finished product planned orders via MD02)
OrdRes – order reservations (converted from DepReq when finished product planned orders are converted to production orders via MD04)
MRP Elements: Receipts
PlOrd. – planned order (generated for finished product based on total requirements via MD02)
PrdOrd – production order (converted from finished product planned orders)
PurRqs – purchase requisition
PRqRel – purchase requisition release
PurOrd – purchase order

MRP Elements Document Types
LA – stock order
PE – run schedule quantity (quota arrangement)

Processing Key
NEUPL – Regenerative planning
NETCH – Net Change in Total Horizon
NETPL – Net change planning in the planning horizon
Create Purchase Requisition
1 – Purchase requisitions
2 – Purchase requisitions in opening period
3 – Planned orders
Scheduling Agreement Delivery Schedule Lines
1 – No schedule lines
2 – Schedule lines in the opening period
3 – Schedule lines
Create MRP List
1 – MRP list
2 – Depending on the exception messages
3 – No MRP list
Planning mode
1 – Adapt planning data (normal mode)
2 – Re-explode BOM and routing
3 – Delete and recreate planning data
Scheduling
1 – Determination of Basic Dates for Planned Orders
2 – Lead Time Scheduling and Capacity Planning

Safety Stock
Static safety stock
Dynamic safety stock

Safety Time
Brings forward procurement proposals
Safety time indicator
” – no safety time
1 – only for independent requirements
2 – all requirements

Basic Date Scheduling
In-house Production (Backward Scheduling)
Opening date
Opening period (processing time to convert planned order to production order)
Order start date
In-house production time
Order finish date
GR processing time
Availability date = requirements date
In-house Production (Forward Scheduling)
Opening date (in the past)
Opening period
Order start date = today
In-house production time
Order finish date
GR processing time
Availability date
External Procurement
Release date
Processing time for Purchasing
Planned delivery time
Delivery date

BOM Selection
BOM Usage (spro: define order of priority for BOM usages)
Selection method (material master)
” – selection by order quantity
1 – selection by explosion date (spro: define BOM explosion control)
” – BOM explosion number/order start date
1 – order start date
2 – order finish date
3 – BOM explosion number/order start date
4 – BOM explosion number/order finish date
2 – selection by production version (by order quantity if no production version found)
3 – selection only by production version

Routing Selection
Selection method (material master)
2 – selection by production version (by order quantity if no production version found)
3 – selection only by production version
Selection ID(SPRO: define scheduling parameters for planned orders)
Selection priority
Task list type
Task list usage
Task list status


https://www.guru99.com/material-requirement-planning-sap-pp.html
https://saptribalknowledge.wordpress.com/2017/06/15/sap-planning-run-settings-explained
https://help.sap.com/saphelp_470/helpdata/en/f4/7d275c44af11d182b40000e829fbfe/content.htm?no_cache=true