If you’ve sat through a sales pitch for a fancy ERP and walked away thinking “how is any of this going to actually work for us?”, you’re not alone. After ten years implementing systems for SMEs in Ghana — pharmacies, agro‑chemical distributors, professional service firms, manufacturers — we’ve seen the same handful of failure modes again and again. None of them are about software.

1. Buying before scoping

The single biggest mistake: signing a licence agreement before anyone has written down what the system needs to do. Vendors are happy to encourage this — the licence is the easy sale. The fit‑gap analysis comes later, by which time the budget is committed and concessions get made.

The fix is unglamorous: spend two weeks writing a one‑page process map for every department before you talk to a single vendor.

2. Treating ERP as an IT project

It is not. It is an operations project that happens to involve software. If your finance director, your warehouse supervisor and your CEO are not in the steering meetings, the project will drift toward whatever the IT team thinks is interesting.

3. Underestimating the data clean‑up

Almost every client we onboard discovers their existing data is messier than they thought. Duplicate customer records, missing supplier IDs, SKUs that have changed three times. Plan for at least 20% of the project budget to go on data work — and build the migration scripts before training, not after.

4. No internal product owner

If everything has to come through an external consultant, momentum dies the day they leave. Identify someone internal — even part‑time — who owns configuration, training and the change request log.

5. Skipping the soft launch

Run the new system in parallel with the old one for a full month‑end cycle before you cut over. Reconcile every report. The bugs you find in this window are 100× cheaper to fix than the ones you find in production.

What success actually looks like

The successful ERP rollouts we’ve done all share four traits: a written process map, a budget that included data work and training, an internal product owner, and a parallel‑run period before cut‑over. Software choice mattered far less than these four things.

If you want a sanity check on a project you’re about to commission, send us a brief. The discovery call is free.