Should a small or mid-sized manufacturer use a packaged ERP suite?

Yes, if your process is close to the standard one and you are willing to adapt. If your production process has many specifics, a suite often has too many features and still lacks the one you need.

Is custom ERP more expensive than packaged ERP?

The upfront cost is usually higher, but there are no per-user fees and you do not pay for features you never use. Compare total cost over several years.

When does custom ERP make sense?

When your production process is a competitive advantage, when packaged software needs heavy customisation, or when you want to own the system and the data.

Comparison · 2 min read

Packaged vs custom ERP for small and mid-sized manufacturers

A comparison of packaged and custom-built ERP for small and mid-sized manufacturers: cost, time, fit, ownership and risk, and when to choose each.

Written by AeroERP · Updated 6 October 2026

Neither option is right for every factory. Packaged ERP fits when your process is close to the common standard. Custom ERP fits when the way you manufacture is different and that difference is worth keeping. This article helps you work out which case you are in.

Two definitions

Packaged ERP is an existing product with several modules and a predefined process. You configure and customise it within the limits the vendor allows.

Custom ERP is designed and built around one company's process.

Six points of comparison

Time to a working system

Packaged is quicker to install, though customising it for production can drag on. Custom takes time to build, but modules can go into use one at a time.

Cost

Packaged is lower at the start and grows with users, modules and customisation fees. Custom is higher at the start and steadier afterwards.

Fit with your process

This is the biggest difference. With packaged software the factory adapts to the product. With custom software the product follows the factory.

Ownership

Packaged: you hold a right to use. Custom: you own the system and have full control of the data.

Risk

Packaged carries the risk of poor fit and vendor lock-in. Custom depends on the capability of the team building it, so it should be split into parts and accepted piece by piece.

Room to grow

Packaged grows within the product's framework. Custom grows in the direction your factory does.

When to choose packaged ERP

Your process looks like most companies in your industry.
You need to go live soon and accept changing how you work.
Your main needs are accounting, trading and basic stock.
You have nobody to stay close to a build project.

When to choose custom ERP

Your production process has specifics that packaged software cannot follow.
You tried packaged software and the floor still runs on spreadsheets.
A large user count makes subscription fees climb quickly.
You want to own the system and control the data.

A common middle path

Many factories keep their existing accounting software and build the production side, where the specifics are, then connect the two. That avoids replacing everything at once.

Questions to answer first

Where does our production process differ from competitors, and is that difference worth keeping?
With packaged software, what would the floor still have to do outside the system?
What is the five-year total cost of each option?

Read our guide to manufacturing ERP software, or book a call and we will look at your case.