Your ERP handles the invoice but not the Welsh-language version the Standards demand
A custom ERP (Enterprise Resource Planning) in Cardiff usually runs £90,000 to £220,000 over 5 to 9 months. You go custom when off-the-shelf systems like NetSuite, SAP or Odoo can't natively run every customer-facing document, status email and portal screen in both Welsh and English, or can't model the event-day demand swings that ripple through Cardiff hospitality and media suppliers around Principality Stadium fixtures.
You bought NetSuite or Odoo expecting it to run the back office, and for the finance ledger it does. Then a Welsh Government framework or a Cardiff Council contract lands and your supplier portal has to be fully bilingual under the Welsh Language Standards, not just the public website. NetSuite gives you one translation layer per field, your purchase orders, dispatch notes and customer statements stay English-only, and you end up bolting a second translation tool onto a system that was never built for two equal languages.
The other crack shows up around demand. A firm supplying catering, AV or staffing to events near the Bay sees orders triple on a Six Nations weekend and flatline the next Tuesday. Off-the-shelf ERP forecasts on a smooth historical average, so it under-orders for the spike and over-orders for the lull, and your finance team patches the gap in spreadsheets the ERP was supposed to kill.
The case for owning your erp
A custom ERP treats Welsh and English as two first-class languages from the data model up, so every document, email and portal view renders in both without a bolt-on. It models event-driven demand as a real input, letting you tie reorder points to the stadium and Bay events calendar instead of a flat average. For a Cardiff firm juggling grant-funded public work and commercial contracts, that one system finally reconciles both without a parallel spreadsheet.
What your build should include
ERP services we deliver in Cardiff
The engagements Cardiff teams bring us most often: NetSuite customization, SAP integration, Odoo development, Microsoft Dynamics 365 and ERP migration.
Budgeting a erp build in Cardiff
| Project scope | Typical cost | Timeline |
|---|---|---|
| Bilingual finance and procurement core | £90k to £140k | 5 to 6 months |
| Plus event-aware forecasting and inventory | £140k to £190k | 6 to 8 months |
| Full ERP with public-sector reporting and portals | £190k to £220k | 8 to 9 months |
Delivery, week by week
Exactly what you get
A finance, procurement and reporting core where Welsh and English are equal citizens, wired to your events calendar so forecasting reflects the real demand pattern around Principality Stadium and Cardiff Bay. You get audit-clean separation of grant-funded and commercial revenue, Making Tax Digital VAT submission, and integrations to your CRM (Customer Relationship Management), inventory management software and accounting software so the ERP becomes the hub, not another island.
How to choose a developer in Cardiff
Pick a team that can show a bilingual public-sector build, not a generic UK ERP with a language toggle bolted on. Ask them to walk through how a single order produces a Welsh and an English document, and how they would feed the stadium events calendar into reorder logic. The right partner talks about Welsh Language Standards and grant reporting unprompted; the wrong one treats Cardiff like any English market.
- Bilingual by design: every PO, invoice and portal screen renders in Welsh and English from one record, satisfying Standards without a translation bolt-on
- Event-aware forecasting that ties reorder and staffing to the Principality Stadium and Cardiff Bay events calendar
- Separate clean reporting for Welsh Government grant-funded versus commercial revenue, ready for audit
- One source of truth that replaces the spreadsheets finance keeps alongside NetSuite to patch the gaps
- Integrates with your existing CRM, inventory management software and accounting software rather than forcing a rip-and-replace
- A bilingual data model is genuinely more work to build and test than an English-only ERP, adding weeks to the timeline
- You own forecasting accuracy: if the event calendar feed is wrong, the system confidently orders the wrong amounts
- No vendor community of Cardiff peers to copy configurations from, so every workflow is decided in-house
- Ongoing maintenance is your line item, not a SaaS subscription someone else patches
- !They treat Welsh as a translation plugin rather than a core data field. Ask how their model stores two equal languages
- !They have never shipped against Welsh Language Standards. Ask for a public-sector reference
- !They quote a fixed price before seeing your contract-reporting requirements. Ask what changes the number
- !They want to replace your CRM and accounting software too. Ask why integration won't do
- !No plan for who maintains the bilingual content after launch. Ask about handover and training
Most Cardiff teams pricing erp end up comparing notes on internal tools, shopify, inventory management too; the systems share one data spine.
Rohan advises mid-market and enterprise teams on ERP, CRM and custom software, and has led delivery on dozens of business-software builds.
Writes for Digital Heroes, shipping business software for 2,000+ brands across 55+ countries since 2017.
Frequently asked questions
Does a custom ERP really need full Welsh support?
If you hold Welsh Government, Cardiff Council or NHS Wales contracts, the Welsh Language Standards typically require customer-facing documents and portals in both languages. A custom ERP builds that in once; off-the-shelf systems force a per-document workaround.
How does it handle event-week demand spikes?
It links reorder points and staffing forecasts to the Cardiff events calendar, so a Six Nations or concert weekend triggers higher stock and shift planning automatically instead of relying on a flat historical average.
Can it work alongside NetSuite or Odoo?
Yes. Many Cardiff firms keep an existing finance package and build custom modules around the gaps, integrating via API. Full replacement is only worth it when the core itself can't model your bilingual and event-driven reality.