project.milestone: fields, relations and API
The project.milestone model ("Project Milestone") is a persistent model declared by the Project module, then extended by 1 other module. It exposes 39 fields, 20 of them declared directly on the model; 6 fields from other models point to it. Below you will find every field with its technical name, type, label and relations, followed by an Odoo 19 JSON-2 API call.
Model identity
- Technical name
project.milestone- Label
- Project Milestone
- Type
- Persistent (models.Model)
- SQL table
project_milestone- Origin module
- Project (
project) - Extended by
- sale_project
- Default order (_order)
sequence, deadline, is_reached desc, name- Inherits from (mixins)
- mail.thread
Model fields
20 own fields, 13 inherited from mixins and 6 automatic ORM fields. Click a name to get a direct link to that field.
39 of 39 fields shown
| Technical name | Label | Type | Details |
|---|---|---|---|
| allow_billable | Allow Billable | boolean | related: added by Sales - Project ( |
| can_be_marked_as_done | Can Be Marked As Done | boolean | computed |
| deadline | Deadline | date | |
| done_task_count | # of Done Tasks | integer | computed |
| is_deadline_exceeded | Is Deadline Exceeded | boolean | computed |
| is_deadline_future | Is Deadline Future | boolean | computed |
| is_reached | Reached | boolean | |
| name | Name | char | required |
| product_uom_id | Product Uom | many2one→ uom.uom | related: added by Sales - Project ( |
| product_uom_qty | Quantity | float | computed added by Sales - Project ( |
| project_allow_milestones | Project Allow Milestones | boolean | computed |
| project_id | Project | many2one | required |
| project_partner_id | Project Partner | many2one | related: added by Sales - Project ( |
| quantity_percentage | Quantity (%) Percentage of the ordered quantity that will automatically be delivered once the milestone is reached. | float | computed, stored added by Sales - Project ( |
| reached_date | Reached Date | date | computed, stored |
| sale_line_display_name | Sale Line Display Name | char | related: added by Sales - Project ( |
| sale_line_id | Sales Order Item Sales Order Item that will be updated once the milestone is reached. | many2one | added by Sales - Project ( |
| sequence | Sequence | integer | |
| task_count | # of Tasks | integer | computed |
| task_ids | Tasks | one2many | inverse: |
| has_message | Has Message | boolean | computed inherited from mail.thread |
| message_attachment_count | Attachment Count | integer | computed inherited from mail.thread |
| message_follower_ids | Followers | one2many | inverse: inherited from mail.thread |
| message_has_error | Message Delivery error If checked, some messages have a delivery error. | boolean | computed inherited from mail.thread |
| message_has_error_counter | Number of errors Number of messages with delivery error | integer | computed inherited from mail.thread |
| message_has_sms_error | SMS Delivery error If checked, some messages have a delivery error. | boolean | computed inherited from mail.thread |
| message_ids | Messages | one2many | inverse: inherited from mail.thread |
| message_is_follower | Is Follower | boolean | computed inherited from mail.thread |
| message_needaction | Action Needed If checked, new messages require your attention. | boolean | computed inherited from mail.thread |
| message_needaction_counter | Number of Actions Number of messages requiring action | integer | computed inherited from mail.thread |
| message_partner_ids | Followers (Partners) | many2many | computed inherited from mail.thread |
| rating_ids | Ratings | one2many | inverse: inherited from mail.thread |
| website_message_ids | Website Messages Website communication history | one2many | inverse: inherited from mail.thread |
| create_date | Created on | datetime | read-onlyautomatic |
| create_uid | Created by | many2one | read-onlyautomatic |
| display_name | Display Name | char | read-onlycomputedautomatic |
| id | ID | integer | read-onlyautomatic |
| write_date | Last Updated on | datetime | read-onlyautomatic |
| write_uid | Last Updated by | many2one | read-onlyautomatic |
Relations
Models linked from this model
- project.project: project_id
- project.task: task_ids
- res.partner: project_partner_id
- sale.order.line: sale_line_id
- uom.uom: product_uom_id
Fields of other models pointing here
- account.analytic.line: milestone_id
- project.project: next_milestone_id
- project.task: milestone_id
- project.task.burndown.chart.report: milestone_id
- report.project.task.user: milestone_id
- timesheets.analysis.report: milestone_id
Reading this model through the API
Odoo 19 JSON-2 API call reading the first five records with real fields of the model. Replace the instance, database and API key with your own.
curl -X POST "https://your-instance.odoo.com/json/2/project.milestone/search_read" \
-H "Authorization: bearer $ODOO_API_KEY" \
-H "X-Odoo-Database: your-db" \
-H "Content-Type: application/json" \
-d '{"domain":[],"fields":["name","project_id","product_uom_id","project_partner_id","sale_line_id"],"limit":5}'import requests
BASE_URL = "https://your-instance.odoo.com/json/2"
headers = {"Authorization": f"bearer {API_KEY}", "X-Odoo-Database": "your-db"}
res = requests.post(
f"{BASE_URL}/project.milestone/search_read",
headers=headers,
json={"domain": [], "fields": ["name","project_id","product_uom_id","project_partner_id","sale_line_id"], "limit": 5},
)
res.raise_for_status()
print(res.json())- External API access requires Odoo's Custom plan.
- XML-RPC and JSON-RPC will be removed in Odoo 22 (fall 2028): use JSON-2.
- The access rights and record rules of the key's user apply.
Cite this tool
Writing a tutorial, internal documentation or a forum answer? Copy this link to send your readers to the up-to-date reference.
<a href="https://aidoo.ai/en/outils/explorateur-modeles-odoo/project-milestone">project.milestone (Odoo 19.0)</a>Sources
Data verified on September 23, 2026 · Odoo 19.0 Community
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