Article 42 - MRP Results

Article 42 - MRP Results


Article 42: How do I interpret MRP results and shortage situations?

How do I read MRP results?

MRP results show you a time-phased view of supply and demand for each material, highlighting when shortages will occur and what procurement actions are recommended.

What does the MRP list display?

Stock/Requirements List (MD04)

Key Information Shown:

  • Current available stock
  • Future requirements by date
  • Scheduled receipts by date
  • Projected available balance over time
  • Procurement proposals generated

How to interpret the display:

Element

What It Shows

What Action Needed

Green numbers

Positive stock levels

No action required

Red numbers

Shortage situation

Procurement needed

Procurement elements

MRP proposals

Review and convert


Exception Messages

What are MRP exception messages?

Exception messages are alerts that highlight planning problems requiring attention from planners.

Common Exception Messages:

Message 10 - Material Shortage:

  • Meaning: Not enough stock to cover requirements
  • Action: Review procurement proposals and convert to firm orders
  • Priority: High - impacts customer delivery

Message 20 - Reschedule Out:

  • Meaning: Existing order/receipt is needed later than currently scheduled
  • Action: Move delivery date to align with requirements
  • Priority: Medium - prevents excess inventory

Message 30 - Reschedule In:

  • Meaning: Existing order/receipt is needed earlier than currently scheduled
  • Action: Expedite delivery or find alternative source
  • Priority: High - may cause stockout

Message 50 - Cancel Process:

  • Meaning: Planned order no longer needed
  • Action: Delete or convert to different requirement
  • Priority: Low - prevents unnecessary procurement

How to prioritize MRP actions?

Shortage Analysis Priority

Critical Shortages (Handle First):

  • Customer orders with confirmed delivery dates
  • Production bottleneck materials stopping manufacturing
  • Safety-critical items affecting operations
  • High-value materials with financial impact

Standard Shortages (Handle Next):

  • Forecast requirements for future planning
  • Safety stock replenishment needs
  • Routine replenishment of standard materials

What tools help interpret results?

Stock/Requirements List (MD04):

  • Material-specific detailed view
  • Exception message integration
  • Drill-down capability to source documents

MRP List (MD05):

  • Multi-material overview
  • Exception-based filtering
  • Planner workbench functionality

Shortage List (MD06):

  • Shortage-focused view only
  • Priority ranking by shortage impact
  • Quick action processing

Best practices for MRP result analysis:

  1. Review exception messages daily
  2. Focus on critical shortages first
  3. Verify requirement dates with customers/production
  4. Check supplier capacity before committing
  5. Document planning decisions for audit trail



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