Your Leeds practice posts invoices in Sage, tracks matters in a legal system, and reconciles by hand every Friday
A custom ERP (Enterprise Resource Planning) for a Leeds business that ties finance, legal-matter accounting, and stock together typically costs £70,000 to £160,000 and takes 5 to 9 months. NetSuite, SAP Business One, and Odoo can run a single-discipline operation, but a Yorkshire firm spanning regulated client money, WIP billing, and warehouse stock usually pays for two of those systems and a person who reconciles between them. Build when the gaps between modules are where your margin leaks.
You bought NetSuite or SAP Business One expecting one system of record. What you got was a general ledger that does not understand client money rules, a billing engine that cannot model legal WIP, and a stock module nobody in your Leeds warehouse trusts. So finance closes the month in Sage, the legal side runs matters in a separate practice system, and someone spends every Friday afternoon keying figures from one into the other.
Odoo is cheaper and more flexible, but the flexibility is the trap. By the time you have customised the accounting module to handle solicitor client account reconciliation and bolted on the stock logic your distribution arm needs, you have built a bespoke system inside an off-the-shelf shell and you pay licence fees on top. The named tools assume a tidy single-business shape. Leeds firms that straddle professional services and physical distribution rarely have that shape.
What breaks first in Leeds
- Client account reconciliation done manually in spreadsheets because the ERP ledger has no concept of SRA-regulated money
- Legal WIP and disbursements tracked in a separate practice system, then rekeyed into the finance ledger monthly
- Stock figures from the warehouse never match the accounting module, so month-end close slips three days every time
- Each new service line means another Odoo customisation that breaks on the next version upgrade
The fix: erp built for Leeds, not rented
A custom ERP lets you model the actual boundary your business lives on: regulated client money on one side, billable WIP in the middle, physical stock on the other, all sharing one chart of accounts and one source of truth. You stop paying a person to be the integration layer. For a Leeds firm where the reconciliation gap is the thing eating two days a month, closing that gap is the whole return on the build.
What erp costs in Leeds
| Project scope | Typical cost | Timeline |
|---|---|---|
| Single-module replacement (finance or stock) | £35k to £60k | 3 to 4 months |
| Finance plus WIP plus stock, one entity | £70k to £110k | 5 to 7 months |
| Multi-entity with client-money compliance and warehouse | £110k to £160k | 7 to 9 months |
The capability list that earns its budget
ERP services we deliver in Leeds
Digital Heroes builds the full ERP stack for Leeds teams. Typical engagements cover custom ERP modules, ERP API integration, ERP implementation, ERP integration and NetSuite customization.
Exactly what you get
A single system of record where finance, billable work, and stock share one chart of accounts. The client-money ledger enforces separation by design, WIP posts to the GL without a Friday rekeying session, and the warehouse count reconciles against finance live. You also get the migration of historic balances from Sage and your practice system, validated, plus a documented data model you own outright so the next change is a ticket rather than a licence renegotiation.
How to choose a developer in Leeds
Pick a team that has shipped regulated-finance software, not just a generic ERP. Ask to see a client-money reconciliation they built and the audit trail behind it. A good Leeds partner will be direct about what off-the-shelf does better and steer you to buy where buying wins. They should map your finance, CRM (Customer Relationship Management), and inventory management software touchpoints in discovery and quote against that map, not a guess. If they cannot explain WIP-to-GL posting in plain Yorkshire English, keep looking.
- !They have never built against UK client-money rules. Ask which SRA accounts reconciliation they have shipped
- !They quote a fixed price before discovery. Ask what their discovery deliverable looks like
- !They push you straight onto Odoo customisation. Ask why a configured product fits your boundary case
- !No plan for migrating historic Sage data. Ask how they validate opening balances
- !They cannot name who maintains the ledger after launch. Ask about their post-launch support model
If erp is on the roadmap, internal tools, shopify, inventory management usually follow within the year. Budget them as one conversation.
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
Can a custom ERP handle solicitor client account rules?
Yes, and that is often the reason to build. Off-the-shelf ledgers like NetSuite and Sage have no native concept of SRA-regulated client money, so firms reconcile by hand. A custom ledger enforces separation, flags breaches, and produces the reconciliation report your auditor wants, removing the spreadsheet that currently holds it together.
Why not just customise Odoo?
You can, and for a simple shape it is the right call. The problem is depth: once you have customised the accounting module for client money and bolted on the stock logic your distribution arm needs, you have built bespoke software inside Odoo and still pay licence fees, and every upgrade risks breaking your customisations. Past a certain complexity, a clean custom build costs less to own.
How long before we stop reconciling manually?
Reconciliation usually disappears the moment the finance, WIP, and stock modules go live together, typically 5 to 7 months into a mid-range build. The two days a month your team currently spends keying figures between systems is the first and clearest saving, which is why it anchors the business case.