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.