Odoo custom development and implementation in Toronto and across Ontario: custom modules and integrations written in Python by engineers, not just configuration — plus implementation, migration, upgrades, rescue of stalled projects and support, for organizations whose processes are what makes them different.
One order, end to end — through your own modules where your process demands them. When the ledger reconciles, the dashboard is already right.
Odoo, engineered — not just installed
Odoo is the open-source ERP that lets an organization run sales, purchasing, inventory, manufacturing, projects and finance in one system, own the code, and choose where it runs. Most Odoo partners configure it. We write it: custom modules in Python that encode the way your business actually works, integrations that reconcile to the ledger, and applications beside the ERP that behave like part of it. Implementation is where we start; custom development is why organizations choose us over an implementation shop, and why the ones with a stalled project come to us to finish it. The OneClient CRM we built with Achēv — a unified client, program and funder system — is Odoo custom modules end to end. For Green Standards, an Odoo-based client portal fed from their Quickbase application through an integration we wrote as custom modules.
We do this for mid-market operators and public-sector organizations across Ontario, in Python — Odoo’s own language and ours — in repositories you own, with tests that run against each Odoo version so the upgrade is a plan rather than a surprise. The Odoo work sits inside a broader ERP consulting practice that also covers Quickbase and Power BI, because the system is only half of what a business needs to run.
What “done” means
An implementation is done when one order can travel from the quote to the general ledger without a spreadsheet in between — through your modules where your process demands them — when the bank statement reconciles against it, and when the people who run the business can see it on a dashboard without asking a developer. That is the standard we build to, it is what the cover of this page draws, and it is what we will show you on your own data before cutover.
What we do with Odoo
Engineering first — the configuration is the easy part
Custom modules in Python
When Odoo does not do the thing your business does, we write the module — models, views, workflows, reports, portals — in Python, Odoo’s own language, against its ORM and its upgrade rules, so the next version does not strand you. This is most of what we do, and it is what an implementation shop cannot.
Integrations that reconcile
The CRM, the bank, the e-commerce front end, the field application, the payroll system, the legacy database nobody will retire — connected with code we own and test, with the totals proven, rather than a chain of connectors and spreadsheets. Python is the language on both sides.
Implementation
Scoping against your actual processes, configuration before customization, data migrated and reconciled, cutover rehearsed. Community or Enterprise edition, on Odoo’s cloud or on infrastructure you control — we will tell you which fits.
Migration and upgrades
From spreadsheets, from a legacy system, or from an Odoo version that has fallen behind. Data mapped, tested and reconciled to the general ledger before anyone depends on it.
Applications beside Odoo
Field apps, customer portals, data-collection tools and mobile work that live outside the ERP and speak to it — built by the same team, in the same language, so they behave like one system. For Green Standards, the client portal is Odoo — custom modules we wrote — fed by their Quickbase application.
Rescue
Implementations stall. The partner disappears, the customizations block the upgrade, the finance team keeps a second set of books. Because we write Odoo code rather than only configure it, we can read what was built, keep what is sound, and finish it — or tell you plainly what finishing would cost.
Reporting and support
Power BI over the Odoo data for the people who make decisions, and a retainer for the questions, changes and upgrades that arrive after go-live.
How an implementation runs
Discover
The processes as they are, the data as it is, and the decisions the system has to support. Two to three weeks; the output is a scope you can price and an honest view of how much of Odoo you need.
Configure, then customize
Standard modules first, configured to your workflow. Custom code only where the business genuinely differs — and written so it survives the next upgrade.
Migrate and reconcile
Rehearsed migrations, opening balances tied out with your accountants, totals proven before cutover.
Cut over and run
A cutover weekend that is boring on purpose, training for the people who will live in it, and a support arrangement sized to how much you want to own.
Who this is for
Organizations whose process is the business
Operators whose way of working is their advantage, and who will not flatten it to fit a template. Their Odoo needs modules that encode the process — and a team that can write them.
Manufacturers, distributors and contractors
Mid-market operators outgrowing spreadsheets and the first accounting package, who need inventory, purchasing, sales and finance in one system without an enterprise licence bill.
Public-sector agencies and programs
Organizations that need an operational system procured quickly — we are an Ontario Vendor of Record — and built accessibly, because that is the law for the people who use it.
Organizations with a stalled Odoo
Who chose the right platform and the wrong partner, and need someone to finish what was started or say plainly that it should be restarted.
In our clients' words
Cantan Group was a pleasure to work with for my organization's new integrated CRM system. I worked closely with the designers on the system UI and app branding. I was very impressed with their level of skill and professionalism. Our users love the simplicity and ease of the new system and the logo was a hit.
Rabia Hamid
Imran and his team developed and maintained several highly customized solutions for our company. I worked closely with Imran for over two years -- you'd be hard-pressed to find a more creative, savvy, responsive developer.
Rick Satenstein — Director of Operations, Green Standards Ltd.
Do you build custom modules, or only configure Odoo?
We build. Most of our Odoo work is custom development: modules that add models, views and workflows the standard applications lack, integrations written against Odoo’s ORM and API, and applications beside the ERP that speak to it. Configuration comes first because it is cheaper, but the reason clients come to us is the part after configuration runs out. Ask an implementation partner for a module and you get a referral; ask us and you get a pull request.
Will custom code make upgrades harder?
Badly written custom code does, and it is the usual reason an Odoo upgrade fails. Ours is written the way Odoo’s own modules are — inheritance rather than copies, migrations scripted, tests that run against each version — and we keep it in a repository you own. Upgrades are a project we plan for from the first module, not a surprise in year three.
Community or Enterprise?
Odoo Community is open-source and free to run; Enterprise adds modules — accounting depth, manufacturing scheduling, studio tools, mobile — under a per-user licence and Odoo’s hosting options. Many organizations are well served by Community with a few custom modules; some genuinely need Enterprise. We implement both and will tell you which, with the licence arithmetic on the table.
Odoo.sh, Odoo Online, or our own servers?
Odoo Online is simplest and least flexible: no custom modules. Odoo.sh allows custom code on Odoo’s platform. Self-hosting gives you everything, including the responsibility. We run all three for clients and recommend based on how much custom code you need and how much control your organization wants.
How long does an implementation take?
A focused implementation for a mid-market operator typically runs three to six months from discovery to cutover. The variables are data quality and how many processes you change at once. We recommend fewer, in sequence, with a live system after each.
Can you work with our accountants?
We insist on it. Opening balances, chart of accounts, tax configuration and the reconciliation of migrated data are done with your finance team, and the general ledger is tied out before cutover. An ERP that does not reconcile is not finished.
What about our existing customizations?
We read them. Some are worth keeping, some are why the upgrade fails, and some duplicate what Odoo now does natively. A rescue starts with that inventory, and the plan follows from it.
Is Odoo accessible?
Odoo’s web client has improved and still falls short of WCAG in places. For public-facing pieces — portals, e-commerce, forms — we build to the standard and test with assistive technology. For internal users we document the gaps and the workarounds honestly, because an obligation to accommodate employees does not disappear inside an ERP.