How accurate is this estimate?

It's directional, not committed. The range is ±20% around a calibrated baseline. Real engagements vary based on stakeholder availability, change-management readiness, and how clean your existing data is. We turn this into a fixed-scope quote during a free 30-minute scoping call.

What does 'modules' mean here?

Count only modules with active workflows — i.e. modules your team will use day-to-day with custom configuration. Don't count modules you'll just enable. A typical mid-market deployment has 4–6 active modules: Sales, Inventory, Accounting, Purchase, plus 1–2 industry-specific.

How are engagement models chosen?

By total scope intensity. Up to ~12 weeks of work: fixed-scope sprint. 13–48 weeks: phased rollout with sequenced go-lives. 49+ weeks: programme-managed rollout with a dedicated PM and architect, typically across multiple business units or geographies.

Why do integrations add so much time?

Each real-time bidirectional integration requires API design, error handling, idempotency, monitoring, and reconciliation. Even a 'simple' Shopify or Salesforce integration is 2–4 weeks once you account for edge cases. EDI and bank integrations skew higher.

Does this include training and change management?

Training is included in the timeline — typically 1–2 weeks of end-user training before go-live, plus office hours for the first 30 days. Change management beyond that (process redesign, role restructuring, comms) is scoped separately.

Free tool

Odoo implementation estimator

Five questions, one minute. Get a directional timeline range, recommended team size, and engagement model — calibrated against TechUltra's project history.

Step 1 of 5

How large is your team?

Headcount across all locations using the ERP.

1–10 employees

Founder-led, single location

11–50 employees

Single function or growing SMB

51–250 employees

Multi-department or multi-site

250+ employees

Multiple business units

What drives Odoo implementation timelines

Five axes account for almost all the variance we see across 400+ engagements. The estimator weights them roughly by their average contribution:

Team size: Drives stakeholder count, training duration, and rollout phasing. 1–10 employees: ~4 weeks. 250+: ~22 weeks.
Module count: Each active module adds workflow design, configuration, testing, and training time. 1–2 modules: ~2 weeks. 10+: ~14 weeks.
Integrations: Real-time bidirectional connections to external systems. Each integration costs roughly 2–4 weeks once edge cases and reconciliation are scoped.
Data migration: Greenfield: 0 weeks. Light (customers + open balances): ~2 weeks. Heavy (multi-year history + reconciliation): ~9 weeks.
Customisation: Standard configuration: 0 weeks. Moderate (custom fields, reports, automation): ~4 weeks. Heavy (custom modules + workflow rewrites): ~10 weeks. We push back on customisation when standard Odoo workflows would do — it saves you maintenance cost forever.

Estimator FAQ

How accurate is this estimate?

It's directional, not committed. The range is ±20% around a calibrated baseline. Real engagements vary based on stakeholder availability, change-management readiness, and how clean your existing data is. We turn this into a fixed-scope quote during a free 30-minute scoping call.
What does 'modules' mean here?

Count only modules with active workflows — i.e. modules your team will use day-to-day with custom configuration. Don't count modules you'll just enable. A typical mid-market deployment has 4–6 active modules: Sales, Inventory, Accounting, Purchase, plus 1–2 industry-specific.
How are engagement models chosen?

By total scope intensity. Up to ~12 weeks of work: fixed-scope sprint. 13–48 weeks: phased rollout with sequenced go-lives. 49+ weeks: programme-managed rollout with a dedicated PM and architect, typically across multiple business units or geographies.
Why do integrations add so much time?

Each real-time bidirectional integration requires API design, error handling, idempotency, monitoring, and reconciliation. Even a 'simple' Shopify or Salesforce integration is 2–4 weeks once you account for edge cases. EDI and bank integrations skew higher.
Does this include training and change management?

Training is included in the timeline — typically 1–2 weeks of end-user training before go-live, plus office hours for the first 30 days. Change management beyond that (process redesign, role restructuring, comms) is scoped separately.