Multi-Level BOMs
Roll-Up Structure
Unlimited levels from raw material to finished good. Subassemblies, intermediate parts, and end items all in one structure. Cost and lead-time roll-up at any level.
Bill of Materials
Multi-Level Visual BOMs with Revisions, Effective Dating, and Where-Used
The Single Source of Product Structure Truth
Synesis MES Bill of Materials replaces scattered Excel BOMs, paper drawings, and CAD-only product structures with a connected, version-controlled BOM system. Multi-level BOMs roll up from raw material through subassemblies to finished goods. Every component has its quantity, scrap factor, position, alternate parts, and effective date. Visual BOM views — top-down, left-to-right, indented — let engineers, planners, buyers, and operators all see the structure their way.
BOMs are version-controlled. Engineering changes go through Synesis QMS change control with impact assessment, multi-stage approval, and automatic propagation to affected work orders. Where-used analysis answers "what products use this component?" instantly. Phantom parts, alternates, and substitutes are first-class citizens.
BOM Capabilities
Visual BOM Display
Top-Down, Left-to-Right, Indented
Multiple visual modes for the same BOM. Engineers prefer top-down. Buyers prefer indented. Operators prefer left-to-right. Same data, three views, click to switch.
Revision Control
Effective Dating
BOM revisions with effective-from and effective-to dates. New revisions don't disturb in-process work orders. Old revisions remain available for audit and warranty support.
Where-Used Analysis
Component-to-Product
From any component, see every BOM that uses it across every revision. Critical for engineering change impact, supplier issue tracing, and obsolescence management.
Alternate & Substitute Parts
Buyer Flexibility
Alternates with priority. Substitutes with approval gates. Phantom parts for kit assemblies. AVL (Approved Vendor List) per component when relevant.
Scrap & Yield Factors
Realistic Material Planning
Per-component scrap factor for accurate purchasing. Yield factors at routing operations for accurate WIP and finished good costing.
Engineering Change Integration
QMS Change Control
BOM revisions flow through Synesis QMS change control with impact assessment, multi-stage approval, training updates, and document control before they release.
Cost Roll-Up
Standard & Actual
Standard cost roll-up from purchase prices and routing labor. Actual cost roll-up from production posting. Variances surface where reality differs from plan.
BOM in the Manufacturing Lifecycle
Engineering Releases
New product BOMs release through formal engineering change control with multi-stage approval, training, and document propagation.
Procurement
Purchasing demand calculated from BOM × work order quantity, with scrap factors and on-hand inventory netting. Supplier visibility per component.
Production
Operators see the BOM at the workstation. Component issuance is BOM-driven. Substitutions documented in real time.
Quality
BOM-driven inspection plans. Component traceability from finished good back through subassemblies to raw material lots.
Explore the Synesis Manufacturing Execution System (MES) Platform
Connect Engineering, Procurement, and Production
See Synesis MES BOM in action with your product structures and your engineering change processes.
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