Spare Parts & Aftermarket Planning.

Westernacher Consulting delivers specialized aftermarket and spare parts planning solutions using SAP Service Parts Planning (SAP eSPP) to address the unique challenges of sporadic and intermittent demand patterns, large SKU portfolios, and critical service level requirements.
Our approach optimizes the balance between inventory carrying costs and parts availability across the aftermarket supply chain through demand classification, tailored forecasting methods, and service-level-driven replenishment strategies.

Our Spare Parts Planning Expertise:

  • Demand planning covering forecasting for Intermittent Demand as well as other types of sales history
  • Stocking Decisions: Determine which parts to stock at which locations based on criticality
  • Network Optimization: Optimize centralized vs. decentralized parts distribution strategy
  • Service Level Optimization: Balance inventory costs with target parts availability
  • Product Lifecycle Management: Plan for new parts introduction and obsolete parts phase-out
  • Excess & Obsolescence Prevention: Proactive identification and management strategies

Spare Parts planning Capabilities:

  • SAP IBP for Inventory Optimization with spare parts capabilities
  • SAP Service Parts Planning (SAP SPP) for basic requirements
  • SAP Extended Service Parts Planning (eSPP) for advanced scenarios

Typical Results:

  • 10-40% forecast accuracy improvement
  • 5-30% inventory reduction with maintained or improved service level
  • Increase of parts availability at distribution center level by 2-10 %
  • Reduction in Obsolescence & Referral Cost between 5-20%
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