Manufacturing ERP in New Zealand: what NZ makers actually need

Manufacturing ERP is the most over-sold software category in ANZ.

Most NZ makers do not need full MRP — they need accurate inventory and dispatch.

Here is the honest map from light assembly to full manufacturing.

The four shapes of NZ manufacturing

NZ has a real manufacturing base — food and beverage, electronics, marine, specialty machinery, agricultural equipment, packaging. The right system shape depends on the manufacturing complexity, not the revenue.

Shape 1: light assembly with a small BOM.

Assembling a fixed list of components into a finished product. No routing, no work centres, no MRP. Xero or MYOB plus an inventory app handles this. Light-assembly mode in Cin7 Core, Unleashed, or DEAR covers the BOM relationship without forcing a manufacturing ERP.

Shape 2: make-to-stock with simple routings.

You produce to forecast, hold finished goods inventory, ship from stock. BOMs go one or two levels deep. Routing exists but is simple — one or two work centres, predictable times. Katana, MRPeasy, or DEAR’s manufacturing module handle this for under NZ$1,000/month combined with Xero or MYOB.

Shape 3: make-to-order with real MRP requirements.

You build to customer specifications, schedule production across multiple work centres, run MRP to drive purchasing, track work-in-progress against jobs. This is where dedicated manufacturing ERPs start to matter — NetSuite Manufacturing, MYOB Advanced Manufacturing, Acumatica Manufacturing, Microsoft D365 Supply Chain Management.

Shape 4: process manufacturing or regulated production.

Continuous-process production (food, beverage, chemicals), batch genealogy, lot tracking, expiry management, allergen tracking, FDA/MPI compliance, recall capability. Industry-specific platforms like Infor CloudSuite Food & Beverage, SAP Business One with process-manufacturing add-ons, or Aptean.

Most NZ makers we talk to are at Shape 1 or 2. Vendor partners push them toward Shape 3 or 4. The cost ratio between adjacent shapes is typically 5–10×.

The “we need MRP” conversation

MRP — Material Requirements Planning — is the planning engine that turns finished-goods demand into purchase orders for raw materials. It is genuinely useful when:

• BOMs go three or more levels deep
• Lead times for raw materials are weeks to months
• Demand is forecast-driven, not order-driven
• You schedule production across multiple work centres with finite capacity

If those four are all true, you need MRP and a manufacturing ERP. If any of them are false, you usually do not — you need accurate inventory and a buffer policy, which is a much cheaper system.

Light-assembly NZ makers running fewer than 200 SKUs with one or two suppliers per component rarely need MRP. They need on-hand visibility, reorder points, and an honest dispatch process. An ops layer on top of Xero or MYOB delivers that for under NZ$3,000/month.

The cost reality of manufacturing ERP in NZ

For a 20-user NZ manufacturer:

• Light-assembly inventory stack: NZ$3,000–10,000/year subscriptions + NZ$5,000–25,000 implementation
• Make-to-stock with light MRP (Katana, MRPeasy, DEAR): NZ$8,000–25,000/year + NZ$15,000–50,000 implementation
• Mid-market manufacturing ERP (NetSuite, MYOB Advanced, Acumatica): NZ$40,000–80,000/year + NZ$100,000–300,000 implementation
• Industry-specific or process manufacturing: NZ$60,000–150,000/year + NZ$200,000–600,000 implementation

The cost gap between Shape 2 and Shape 3 is the place most NZ makers get caught. The honest test: if the four MRP triggers above do not all apply, do not pay the Shape 3 price.

Where OpsUI fits in the manufacturing conversation

OpsUI is not a manufacturing ERP. We do not have a routing engine, finite-capacity scheduler, or shop-floor data collection. If you need those, the right vendors are Katana or MRPeasy at the SMB end and NetSuite, Acumatica, or MYOB Advanced at the mid-market end.

Where OpsUI fits in manufacturing operations is the same as in distribution: inventory, picking, dispatch, returns, cycle counts. Light-assembly NZ makers running on Xero or MYOB who need a real warehouse layer use OpsUI for the operations side, with the BOM relationship handled in the accounting or inventory platform.

For Shape 1 and Shape 2 makers, the OpsUI-plus-Xero stack is a real fit. For Shape 3 and 4 makers, OpsUI is a complement to a manufacturing ERP, not a replacement.