Odoo Timesheets: Logging, Validating & Billing Worked Time

What Are Odoo Timesheets?

Odoo Timesheets is the Odoo app for logging, viewing, and validating working time across projects and employees. It is not a standalone time clock: entries sit next to Projects, Sales, Helpdesk, Time Off, and Payroll so one line of captured time can drive operational reporting, client invoices, and (where localizations allow) payslip inputs.

The core capture unit is time against a project and, usually, a task. You enable timesheets in the project's Time Management settings; team members then log from the Timesheets grid, a live timer, or the task/ticket itself. Hours roll up for utilization, real-time project margin, and—when a Sales Order Item is attached—time-and-materials invoicing.

That integration matters for services firms in 2025–2026. Industry billable utilization averaged about 66.4% in 2025 in SPI Research's Professional Services Maturity Benchmark (the lowest figure in that survey series), while top-performing firms sit above 80%. Missing, unvalidated, or unlinked hours are the classic silent leak; partners and operators repeatedly frame Odoo Timesheets as the control point that turns logged work into invoiceable revenue instead of end-of-month spreadsheet reconciliation.

• →Log time per project and task via timer, grid, or task/Helpdesk entry.
• →Managers validate entries before billing and payroll treat them as clean.
• →Link billable lines to a Sales Order Item so hours become invoiceable.
• →Surface utilization with billing-rate targets, leaderboards, and pivot analysis.

How to Log Time: Encoding Methods

Odoo 19 offers three primary encoding paths. The Timesheets app opens by default to My Timesheets in grid view: projects (rows) by day (columns), with a Time Spent total for the period. Suggested projects may appear in italics based on assignments, deadlines, and recent history so people do not forget engagements they already own.

Daily and period totals are color-coded against the employee's Working Hours: green when logged time matches expectation, brown/orange when over, red when under. That makes undertime and overtime visible without exporting to a spreadsheet. Users must be registered as employees to log timesheets, and Timesheets access rights control whether they see only their own lines, all employees' lines (including validation), or full Configuration.

• →Flexible encoding units (hours, minutes, days, half-days) and timer rounding are configured in Timesheets settings.
• →Mobile app encoding supports field and remote staff without a desktop session.
• →Grid, list, Kanban, pivot, and graph views support capture, bulk actions, and analysis.

Setting Up Timesheets on a Project

Employees can only log time when the project allows it. There is no separate timesheet-project object: enable capture on the project the team already uses.

For time-and-materials billing, also confirm Analytic Accounting is active and that service products used on sales orders are set to invoice Based on Timesheets. Without that product configuration, hours may still record for operations but will not drive delivered quantity on the sales order.

1. 01
   Enable timesheets on the project

   In Project, open the project's Settings (vertical ellipsis on the project card → Settings). On the Settings tab, under Time management, enable Timesheets.

2. 02
   Set access rights

   Under Settings → Users & Companies → Users, set Timesheets access: blank (no access), User own timesheets only, User all timesheets (view/edit/validate everyone), or Administrator (plus Configuration).

3. 03
   Log and review

   Team members log on the task Timesheets tab, the grid, or the timer. Hours roll up to the task, project, and employee views for utilization and profitability.

Validation and Approval Workflow

Manager validation is the gate between raw capture and trusted downstream use. Users with sufficient rights open the validation view (commonly framed as timesheets to validate), review by week or month, and confirm individual lines or bulk-validate a selection from list or grid actions.

Odoo's model is lighter than a formal multi-stage approvals pipeline: once validated, entries sit in the approved pool that billing policies and payroll consumers treat as clean. Product documentation also describes operational controls around this step—periodic email reminders for people who still need to encode or validate, and lock dates that prevent staff from creating or editing timesheets before their last validated date—so late rewrites do not silently rewrite already-billed periods.

Approved Time Off requests can auto-generate timesheet lines on a configured project/task (defaults are often Internal / Time Off once Time Off integration is enabled in Timesheets settings). Categories that do not require approval post instantly; types that need approval post after the leave is validated. That keeps leave visible on the same grid managers already review.

• →Validate individually or in bulk from manager validation views.
• →Optional reminders nudge incomplete encoding and pending validation.
• →Lock dates reduce backdated edits after the last validated timesheet.
• →Approved leave can auto-create timesheet lines so managers do not re-key PTO.

Billable vs Non-Billable Time

Not every hour should hit a client invoice. In Odoo, timesheets become client-billable when they are linked to a sales order context—typically a project/task created from a service product and a Sales Order Item on the timesheet line. Without that link, lines remain internal effort: useful for utilization, capacity, and cost, but excluded from T&M invoice generation.

Teams usually keep three buckets on the same grid: client-billable delivery tied to a sales order line; internal R&D, training, or admin (tracked, not invoiced); and support or meetings that must stay visible for management but stay off invoices. Product features allow you to decide whether invoices pull all recorded timesheets or only validated ones—use the stricter policy when invoice integrity matters more than speed.

Practitioner chatter in 2026 still circles the same failure mode: hours exist in a spreadsheet or ticket tool, never make it onto a sales order, and never invoice. Odoo partners describe unbilled hours as silent revenue leaks; the structural fix is task-linked logging plus SO-item linkage, not more end-of-month chasing.

• →Billable: timesheet linked to a sales order item on a T&M service product.
• →Non-billable/internal: still logged for utilization and cost, never invoiced.
• →Prefer validated-only invoicing when client trust and auditability outweigh speed.

Billing Time Through Odoo Sales

Time becomes revenue through Odoo Sales. Configure a product with Product Type = Service and Invoicing Policy = Based on Timesheets. On Create on Order, choose Project & Task so confirming the sales order auto-creates the project and task the team logs against (or Task into an existing project when the work sits under a shared engagement).

Employees log hours on that task; delivered quantity on the sales order line updates from recorded time. From the sales order, Create Invoice → Regular invoice → Create Draft Invoice builds invoice lines from the hours and unit price on the order line. Analytic distribution on the draft invoice keeps project margin coherent with Accounting.

Odoo's Project profitability view shows amounts moving into To invoice (revenues) or To bill (costs) as work such as timesheets is delivered, giving a live margin picture while the engagement is still open. For multi-rate work, sales order lines and employee-to-line mappings control whether everyone bills at a project rate or individual rates; complex rate cards may need configuration beyond the default product price.

• →T&M invoices pull from timesheet-backed delivered quantity on the SO line.
• →Fixed-price or milestone jobs still use timesheets for cost and utilization, not for the invoice amount.
• →Project Profitability reflects to-invoice and to-bill as time lands.

1. 01
   Configure the service product

   Sales → Products: Service type, Invoicing Policy Based on Timesheets, Create on Order Project & Task (or Task + existing project).

2. 02
   Confirm the sales order and log time

   Confirm the SO, open the Tasks smart button, and log hours on the Timesheets tab (or via timer/grid with Sales Order Item set).

3. 03
   Invoice delivered hours

   Return to the sales order, confirm Recorded Hours / Delivered quantities, then Create Invoice and confirm the draft after review.

Utilization, Billing Rate Targets, and Reporting

Once capture and validation work, the next management question is utilization: how much of expected capacity is billable. In Timesheets → Configuration → Settings, enable Billing Rate Indicators, then set each employee's monthly Billing Time Target (hours or days, matching the Encoding Method). My Timesheets then shows logged billable time / target and a completion percentage—red below target, green at or above—plus total time logged for the month.

Optionally enable Billing Rate Leaderboard to show top performers by percentage of allocated billing hours and a Total Time Leaderboard for overall logged time. Daily motivational tips can sit beside the board if you want light gamification without leaving the app.

Reporting views (pivot, graph, timesheet analysis) break hours by task, project, employee, and billing type. Planning and Attendance comparisons help managers spot gaps between planned work, clocked attendance, and timesheeted effort—useful when billable utilization industry averages sit near the mid-60s and every recovered point of capacity is pure margin.

Payroll and Work Entries

On the payroll side, Odoo Payroll computes worked time using Work Entries. The Payroll app creates those entries from the employee's salary structure type and from Planning, Attendances, and Time Off—not from a weekly CSV export of the timesheet grid.

Validated timesheet context and auto-posted leave lines feed a consolidated worked-time picture. Because approved leave can create timesheet entries automatically, managers who validate the timesheet grid already see the same leave hours payroll will respect. Availability and depth of Odoo Payroll still vary by country localization; do not assume feature parity with a full enterprise HCM payroll engine in every jurisdiction.

• →Work Entries are the payroll engine's unit of worked time.
• →Planning, Attendances, and Time Off contribute alongside structure rules.
• →Timesheet + leave validation reduces manual payroll recon.

Dynamics 365 Equivalent: Project Operations Time Entries

The Dynamics 365 equivalent is Dynamics 365 Project Operations time entries (historically under Project Service Automation). Team members create time entries against a Project Task and submit them for approval. On approval the system generates cost actuals and sales actuals—the unbilled revenue that drives project financials, invoicing, and profitability.

Approvals run through the Project Operations approvals pipeline. Submitters can recall approved time or expense entries; approvers can cancel previously approved items. Both paths reverse generated actuals so corrections do not leave orphan financials. That is a more formal actuals-generating pipeline than Odoo's manager validation list, at the cost of a heavier Microsoft Dataverse / Power Platform stack.

• →Time entries attach to a Project Task and submit into an approvals pipeline.
• →Approval generates cost and sales actuals for invoicing and profitability.
• →Recall and cancel-approval reverse actuals for clean corrections.

Corrections After Approval and Choosing a Platform

Where Odoo's approval is a manager validation step with optional lock dates and validated-only invoicing, Dynamics 365 Project Operations treats approval as generation of financial actuals with structured recall and cancel paths. Choose based on how formal your audit trail and correction process must be—not on a single checkbox.

For SME professional services, the choice is architectural. Odoo Timesheets is one app in Odoo's modular suite, licensed per app and user, sitting with Projects, Sales, Payroll, and Time Off on one platform. Dynamics 365 Project Operations runs on Dataverse, typically licensed per user as a Project Operations edition or as an attach to Finance or Supply Chain Management. Fit depends on organization size, existing Microsoft versus open-source stack, multi-company needs, and whether you want PSA depth inside a broader ERP or a Microsoft-centric project financials stack.

• →D365 recall/cancel reverses actuals for post-approval fixes.
• →Odoo favors fast validation plus SO-linked invoicing for SMEs.
• →Platform choice follows stack, licensing, and audit formality—not a single feature.

Frequently asked questions