Project Gantt & Dependency Planner
Drag-and-drop Gantt timeline with FS/SS/FF/SF task dependencies, critical path and auto reschedule
Project Gantt & Dependency Planner adds a full OWL Gantt timeline to Project, with none of the Enterprise dependency. Typed Finish-to-Start/Start-to-Start/Finish-to-Finish/Start-to-Finish task dependencies drive a real forward/backward-pass scheduling engine, so critical path, slack and cascading reschedules work exactly like a textbook Critical Path Method chart.
Key Features
Typed task dependencies
Link any two tasks of the same project with one of the four classic Precedence Diagramming Method relations, each with an optional lag or lead in days (negative allowed).
Own OWL Gantt timeline
A day-by-day or week-by-week timeline with SVG dependency arrows and drag-to-move bars, rendered entirely by this module as a client action from the Project form or the app menu, no Enterprise widget required.
Drag-to-reschedule with cascade
Dragging a task's bar to a new start date saves immediately and automatically pushes every downstream dependent task out just enough to respect its own dependency constraints, never pulling a task earlier on its own.
Forward/backward pass and critical path
Early start/finish and late start/finish are computed for every task from its dependency network; tasks with zero slack are flagged critical and highlighted on the timeline.
Dependency-cycle detection
Creating a dependency loop, directly or through a longer chain, is rejected with a clear validation error before it ever reaches the scheduler.
One-click schedule recalculation
A Recalculate Schedule button on the project re-runs the full forward/backward pass for every task, useful after bulk edits or importing a plan.
Import native Blocked-By dependencies
Turn any task's existing core Odoo Blocked By relation into a typed Finish-to-Start Gantt dependency with one click, so plans built before this module was installed are picked up by the scheduler.
Delayed critical-task alerts
A daily scheduled job flags every critical-path task that has slipped past its planned finish date, posting a chatter warning and scheduling a follow-up activity for its assignee.
Use Cases
Screenshots
01 Task Dependencies List
03 Add Dependency Wizard
Why Choose This Module
Unlike a purely visual timeline widget, this module's scheduling logic is a genuine, unit-tested Critical Path Method engine: dependency type, lag/lead, forward/backward pass and cycle detection are all real graph computations, not cosmetic date offsets, so the critical path and slack figures it shows can be trusted for real planning decisions.
Specifications
- Compatible: Odoo 18.0 / 19.0
- License: OPL-1
- Languages: English
- Author: Pokutsoft
- Dependencies: project
- Support: support@pokutsoft.com
- Update date: 2026-10-06
| Availability |
Odoo Online
Odoo.sh
On Premise
|
| Odoo Apps Dependencies |
•
Project (project)
• Discuss (mail) |
| Lines of code | 1480 |
| Technical Name |
project_gantt_dependency_planner |
| License | OPL-1 |
| Website | https://pokutsoft.com/ |
Odoo Proprietary License v1.0 This software and associated files (the "Software") may only be used (executed, modified, executed after modifications) if you have purchased a valid license from the authors, typically via Odoo Apps, or if you have received a written agreement from the authors of the Software (see the COPYRIGHT file). You may develop Odoo modules that use the Software as a library (typically by depending on it, importing it and using its resources), but without copying any source code or material from the Software. You may distribute those modules under the license of your choice, provided that this license is compatible with the terms of the Odoo Proprietary License (For example: LGPL, MIT, or proprietary licenses similar to this one). It is forbidden to publish, distribute, sublicense, or sell copies of the Software or modified copies of the Software. The above copyright notice and this permission notice must be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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