Auto parts manufacturers deal with complex, nested BOMs that change with every customer revision. ERPDrive gives you a structured, version-controlled BOM system with real-time cost roll-ups, alternate material support, and direct integration with production planning and procurement.
If your BOM lives in Excel, you have probably faced at least one of these problems this week.
The engineering team updates a BOM in their Excel file, but the production floor is still working from last month's version. A customer sends a revised drawing, and now there are three different BOM versions floating around. Nobody knows which one is the latest approved version.
When BOMs are maintained in spreadsheets, cost calculations are static. Raw material prices change monthly, but your BOM cost does not update automatically. You quote a customer based on outdated costs and discover the margin has evaporated only after production is complete.
A sub-assembly requires eight components, but the BOM spreadsheet only lists seven because someone forgot to add the new sealing washer. Production starts, reaches the assembly stage, and grinds to a halt because the missing part was never procured.
A single source of truth for every product structure, revision, and cost calculation in your factory.
Build BOMs with unlimited nesting levels. See the complete product structure as an expandable tree, from the finished assembly down to the last raw material. Add sub-assemblies, bought-out parts, and process consumables in a structured hierarchy.
Every BOM change is tracked with timestamps, user names, and change descriptions. Compare any two revisions side by side to see exactly what changed. Roll back to a previous version with one click. Maintain engineering change order (ECO) references.
Material costs are pulled from the latest purchase rates or standard costs. Labour and overhead costs are calculated from routing parameters. The total product cost updates automatically when any input changes, giving you always-current margins.
Define alternate raw materials for each BOM line. Create customer-specific variants (like different surface treatments for different OEMs) that inherit from the base BOM. When the base BOM changes, variants update automatically.
A structured, visual interface for managing product structures, material lists, and cost breakdowns.
| BOM ID | Product | Level | Components | Cost (₹) | Status |
|---|---|---|---|---|---|
| BOM-101 | Brake Disc Assy | 3 | 24 items | ₹1,450 | Active |
| BOM-102 | Gear Box Sub-Assy | 4 | 38 items | ₹4,820 | Active |
| BOM-103 | CV Joint Kit | 2 | 12 items | ₹2,100 | Draft |
| BOM-104 | Clutch Plate Set | 3 | 18 items | ₹890 | Active |
Everything you need to define, manage, and control your product structures.
Create BOMs with sub-assemblies within sub-assemblies. ERPDrive handles any depth of nesting, from simple single-level BOMs to complex multi-level product structures with dozens of levels.
Compare two BOM revisions side by side. See added, removed, and changed components highlighted in a clear diff view. Essential for engineering change management and customer revision tracking.
Select any raw material or component and instantly see every BOM it appears in. Critical when a material is discontinued or a vendor changes specifications. Know the full impact before making changes.
Define expected scrap rates and yield percentages for each BOM line. ERPDrive inflates material requirements during production planning to account for manufacturing loss, so you always procure the right quantity.
Link BOM revisions to formal ECOs with approval workflows. Track the reason for change, affected production orders, and implementation date. Maintain full traceability for IATF 16949 audits.
Migrating from spreadsheets? Import your existing BOMs from Excel or CSV files. ERPDrive maps your columns, validates the data, and creates structured BOM records automatically.
Attach engineering drawings, customer specifications, process sheets, and reference documents directly to BOM records. The production team always has access to the right documents alongside the material list.
When your sales team creates a quotation, the product cost is pulled directly from the BOM. Material costs, process costs, and overheads are calculated automatically, giving you accurate margins for every quote.
Your BOM is the foundation for production, procurement, and costing. These modules rely on accurate BOM data.
Common questions about ERPDrive's BOM management module.
A multi-level BOM is a bill of materials that includes sub-assemblies, which themselves have their own BOMs. ERPDrive supports unlimited nesting levels. For example, a brake assembly BOM can include a caliper sub-assembly, which in turn includes individual piston, seal, and housing components. Each level has its own material list, routing, and cost structure.
Yes. Every change to a BOM is tracked with a full revision history including timestamps, user names, and change descriptions. You can compare any two versions side by side, see exactly what was added, removed, or modified, revert to a previous version, and maintain customer-specific BOM variants without creating duplicate records.
ERPDrive automatically rolls up costs from the lowest level of the BOM tree. Raw material costs are pulled from the latest purchase rates or standard costs you define. Process costs including labour, machine time, and overheads are added at each routing step. The total product cost updates in real time whenever material prices or process parameters change.
Yes. ERPDrive allows you to specify alternate materials for any BOM line item. During production, if the primary material is out of stock, the system suggests available alternates with their cost impact. This is particularly useful for auto parts manufacturers who source raw materials from multiple vendors with different grades or specifications.
Absolutely. Many auto parts manufacturers produce the same component with slight variations for different OEM customers, such as different surface treatments, packaging requirements, or material grades. ERPDrive lets you create customer-specific BOM variants linked to the base BOM. Changes to the base propagate to variants, while customer-specific modifications are preserved.
See how ERPDrive can replace your Excel-based BOMs with a structured, version-controlled system that integrates with production, procurement, and costing.