SAP Knowledge Base Article - Preview

3782062 - System shows error "Lean Service is not supported in compatibility procurement Mode" while adding Non-stock material

Symptom

  • An error occurs when adding a non-stock material under a network activity.
  • The issue occurs only for projects created before 12 July 2026.
  • Error message: "Lean service is not supported in Compatibility Procurement Mode."


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Environment

  • SAP S/4HANA Cloud Private Edition
  • SAP ERP Project System (PS)

Product

SAP S/4HANA 2023 ; SAP S/4HANA 2025 ; SAP S/4HANA Cloud Private Edition all versions

Keywords

Lean Service, compatibility procurement mode, advanced procurement mode, non-stock material, item category, network activity, project system,  add component error, procurement mode mismatch, project builder, network header, project definition, service component,  , KBA , PS-ST-NET , Network and activities , PS-ST , Structures , Problem

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