Manufacturing ERP Consultant, USA

How US manufacturers typically run, and where ERP breaks

Many smaller US manufacturers are job shops. Work arrives as a request for quote, often with drawings, and the business wins or loses on how fast and accurately it can estimate material, machine time and outside processing such as plating or heat treat. Once a job is won, it becomes a traveler that moves across work centers, and actual hours are compared with the estimate only if someone remembers to do it.

Repetitive and process manufacturers, such as food, packaging or plastics plants, run differently. They plan from forecasts and customer releases, often received through EDI from large retailers or OEMs, and care more about line schedules, yields and lot control than job estimates.

ERP problems usually come from forcing one model into the other. A job shop on a system built for repetitive planning drowns in work orders; a process plant on a job-costing tool loses lot visibility. Before any demo, I map your order-to-delivery and plan-to-produce flows, including where estimates, travelers and production counts live today. That map decides what the ERP must do first. My general guide to ERP for manufacturing covers the functional basics; this page is about the US context.

Sales and use tax, tariffs and landed cost

The US has no national VAT, and manufacturers feel that most on the buying side. Many states provide some form of exemption for materials that become part of a finished product or for machinery used in production, but the rules, certificates and limits differ by state. If you buy taxable items without paying sales tax, use tax may need to be accrued. Your ERP or connected tax engine should record which purchases are exempt and why, and keep resale and exemption certificates from customers linked to their accounts. I document these touchpoints as requirements and leave the rulings to your tax advisor.

Imports add another layer. Steel, aluminum, resins, electronics and subassemblies often come from overseas suppliers, and duties, tariff surcharges, customs brokerage and inland freight can change your true material cost after the purchase order is placed. A system that only records supplier invoice prices will understate cost and mislead quoting.

I define how landed cost is captured on receipts, how tariff codes and country of origin are held on items, and how cost changes flow into standards and quotes. If you also sell into Canada or Mexico, origin data matters for trade agreement claims, a topic I cover with Canadian plants on my Canada manufacturing ERP page.

Traceability, quality and customer requirements

US buyers increasingly push traceability requirements down their supply chains. Automotive OEMs expect production part approval and documented process control. Aerospace and defense customers want material certifications and, for some work, controls over who can access technical data. Food producers need lot records that support recalls and FDA food safety rules. Medical device manufacturers need device history records and controlled changes.

For ERP design, that translates into concrete requirements:

• Lot, serial or heat number tracking from receipt through production to shipment.
• Certificates of conformance and supplier material certs attached to receipts and lots.
• Engineering change control with dated BOM and routing revisions.
• Non-conformance, quarantine and rework flows that hold stock until released.
• Fast forward and backward trace queries for recalls or customer complaints.

If you handle export-controlled drawings or data, hosting location and user access rules belong in the selection criteria, so ask each vendor how their cloud handles them. I write these into the requirements and the UAT scripts, so traceability is proven on real scenarios before go-live rather than discovered missing during an audit.

Costing, US GAAP inventory and lender reporting

US manufacturers report under US GAAP, and inventory is often the largest asset on the balance sheet. The valuation method, whether standard cost, average or FIFO, and in some companies LIFO for tax reasons, has to be agreed between your controller, your CPA and operations before configuration. Changing it after go-live is painful.

Labor and overhead absorption matter too. Many plants run multiple shifts, pay overtime and shift differentials, and use temporary staff in peak periods. Payroll usually stays in a dedicated provider, so the ERP needs a clean link: hours by job or work center flow into costing, while pay calculations stay where they are.

If you borrow against receivables and inventory, your lender will want regular reports on eligible stock and aging. Building those from the ERP, rather than from a spreadsheet assembled on the due date, is a practical requirement worth stating early. I cover reporting design under ERP solution design, and the broader US finance context on my US ERP consultant page.

Systems, migration and remote delivery for US plants

The systems I see most often in smaller US plants are QuickBooks with spreadsheet job tracking, Sage, older Dynamics GP installations, and niche job shop packages that were never connected to accounting. Larger groups may have a legacy ERP at one site and something lighter at an acquired plant.

Migration priorities are the same everywhere, but US plants add a few: open jobs with partial completion, consigned or customer-owned material, outside processing at vendors, and tariff-affected standard costs. I plan which items, BOMs, routings and open orders move, and which history stays readable in the old system. See my ERP data migration service and the ERP migration checklist.

Platform fit depends on your model. Odoo Manufacturing and ERPNext Manufacturing suit many small and mid-sized plants; Business Central fits companies already invested in Microsoft. I work remotely across US time zones, with live sessions for planners and supervisors and recorded walkthroughs for other shifts. More on how I work with American businesses is on my USA hub.