“How long will it take?” is usually the first question we hear from a business considering Odoo, and the honest answer is that it depends. A focused accounting implementation for a small company looks very different from a multi-department rollout covering stock, manufacturing and sales.
What we can do is show you the stages every implementation goes through and what drives the time in each one, so you can plan with confidence.
Phase 1: Discovery and process review
Before anything is configured, we need to understand how your business actually runs: what you do today, what frustrates you, and what you want to stop doing manually. This is also where we agree scope, because scope is the biggest single factor in how long everything else takes.
What affects the time: the number of departments involved, how well your current processes are documented, and how quickly decisions can be made.
Phase 2: Design and configuration
We set up Odoo around your processes: chart of accounts, tax settings, products, workflows, user roles and any reports you rely on. For businesses with an accounting need, this is where HMRC and VAT requirements are built in from the start, not added later.
What affects the time: the complexity of your products and pricing, the number of companies or currencies, and how much is standard Odoo versus tailored to you.
Phase 3: Data migration
Moving customers, suppliers, products, opening balances and open transactions from your current system. It’s often the phase that takes longest to get right, because it exposes problems in the old data: duplicates, inconsistent naming and balances that don’t reconcile.
What affects the time: the volume and cleanliness of your existing data, and how many source systems it’s coming from.
Phase 4: Testing
Your team tries the system using real scenarios from your own business: raising an invoice, receiving stock, running a month-end. This is where gaps and misunderstandings surface while they’re still cheap to fix.
What affects the time: how much time your team can set aside for testing. It’s the most common cause of delay, and the easiest to plan for.
Phase 5: Training
People need to be comfortable with the system before go-live, not after. Training is most effective when it follows your own workflows rather than generic demonstrations.
What affects the time: team size, how varied the roles are, and how familiar people are with their current system.
Phase 6: Go-live and support
The switch-over itself, followed by close support while your team gets used to working in the new system. The first month-end in a new system is a useful checkpoint, and it’s worth planning for extra help at that point.
What affects the time: your choice of go-live date (we’d usually avoid year-end or VAT quarter-end) and how much support you want afterwards.
What speeds an implementation up
- A clear scope agreed at the start
- One person on your side with the authority to make decisions
- Clean data, or time set aside to clean it
- Protected time for testing and training
What slows it down
- Scope that grows part-way through
- Decisions that wait on several people
- Discovering data problems late
- Treating training as optional
A realistic view
An implementation is a change in how your business works, so its duration is set by how quickly your team can make decisions, test, and adapt. That is also why it’s worth speaking to someone who has done it before. We’d rather give you a realistic plan than an optimistic one.
Talk it through
As ACCA-qualified Odoo specialists, we’ll look at your business and give you a straight view of what’s involved. If your needs are simpler than you expected, we’ll say so.