Manufacturing ERP in Kenya: Why Most Factories Don't Actually Know Their Cost Per Unit

The cost-per-unit figure that's quietly wrong

Most manufacturers set their pricing based on a cost-per-unit figure calculated at some point in the past — often when the business started, or the last time raw material prices moved significantly. In between those recalculations, material costs drift, wastage changes, and labour efficiency shifts, but the price being charged doesn't necessarily follow. A product that was profitable eighteen months ago can quietly become a loss-maker without anyone noticing, because nobody's recalculating cost per unit continuously against what's actually happening on the floor.

A Bill of Materials turns 'about this much material' into an actual recipe

Without a formal Bill of Materials, raw material usage per unit is often an informal understanding rather than a documented, enforced recipe — 'we use roughly this much fabric and this much foam per unit.' A proper BOM specifies exact quantities of each input per unit, which does two things: it lets the system calculate exact material cost per unit from current prices, and it flags when actual consumption on a production run is running higher than the BOM says it should — a sign of wastage, theft, or a process problem worth investigating.

Planning production against capacity, not against hope

Manufacturing Resource Planning (MRP) generates a production plan from confirmed orders, checked against what's actually in stock and what the work centres can realistically produce in the available time. Without this, production plans are often built on hope — committing to a delivery date without actually checking whether the specific work centre has the capacity, or whether all the required raw materials are in stock, which leads to late deliveries that could have been predicted and avoided at the planning stage.

Quality problems caught late cost more than quality problems caught early

A defect caught at final inspection, after materials, labour and machine time have already been spent on a unit, is far more expensive than the same defect caught at incoming material inspection or an early in-process checkpoint. Many small manufacturers only inspect at the very end, which means a batch of defective raw material, or an early process error, doesn't get caught until the full cost of production has already been sunk into units that then have to be scrapped or reworked.

Placing inspection checkpoints earlier in the process — checking incoming materials before they're released to production, and checking in-process at key stages — catches problems while they're still cheap to fix, rather than at the point of maximum sunk cost.

Work-in-progress that's invisible until someone walks the floor

Without a system tracking what's queued, what's actively being worked on, and what's finished at each work centre, the only way to know the true state of production is to physically walk the floor and ask. This works for a small operation but breaks down as production scales across multiple work centres and shifts — by the time an issue (a bottleneck, a stalled work order) is noticed on a walk-through, it may have been causing delays for hours already.

Why this needs to connect to accounting, not sit separately

A production costing system that calculates cost per unit but doesn't actually post that figure through to inventory valuation and cost of goods sold in the accounting system creates two separate versions of the truth — one that production believes, and one the books actually show. When material consumption, labour cost and finished-goods value post automatically from production into accounting, the cost of goods sold figure in the financial statements actually matches what happened on the floor, rather than being a separately maintained estimate that drifts from reality over time.

What a proper manufacturing system gives you

A real BOM per product, MRP-driven production planning against actual capacity, work orders routed through defined work centres, quality checkpoints at incoming, in-process and final stages, visible work-in-progress at any point in the shift, and a true cost-per-unit figure that posts through to inventory and accounting automatically.

Zinen Technologies builds a Manufacturing Management System for Kenyan manufacturers and processors covering this full scope — whether it's a single-line workshop or a multi-stage factory with several work centres.