Create a project milestone
Changed onCreates a milestone on a project. Requires title, date, icon_id and project_id — the project must be visible to you and cannot be a template. When color_id is omitted, the milestone takes the color of its project. assignee_id must be an active member of the project. Requires the permission to manage project milestones.
Create a milestone
{
"data": {
"type": "project_milestones",
"attributes": {
"title": "Beta launch",
"date": "2026-10-15",
"icon_id": "icon-rocket-launch",
"note": "Release to beta customers.",
"assignee_id": 1002,
"project_id": 7388870
}
}
}
Request
- Base URLhttps://developer.productive.io (the document declares no server; this is the origin it was published from)
- URLhttps://developer.productive.io/api/v2/project_milestones
- Authnone declared
Request body
Example request
{
"data": {
"type": "project_milestones",
"attributes": {
"title": "Beta launch",
"date": "2026-10-15",
"icon_id": "icon-rocket-launch",
"note": "Release to beta customers.",
"assignee_id": 1002,
"project_id": 7388870
}
}
}Response
A single project milestone.
Example response
{
"data": {
"id": "42",
"type": "project_milestones",
"attributes": {
"title": "Beta launch",
"date": "2026-10-15",
"color_id": "6",
"icon_id": "icon-rocket-launch",
"note": "Release to beta customers.",
"created_at": "2026-09-01T10:15:00.000+02:00",
"updated_at": "2026-09-01T10:15:00.000+02:00"
},
"relationships": {
"organization": {
"data": {
"type": "organizations",
"id": "109"
}
},
"creator": {
"data": {
"type": "people",
"id": "1001"
}
},
"assignee": {
"data": {
"type": "people",
"id": "1002"
}
},
"project": {
"data": {
"type": "projects",
"id": "7388870"
}
}
}
},
"included": [
{
"id": "7388870",
"type": "projects",
"attributes": {
"name": "Website redesign"
}
}
],
"meta": {}
}Changes
- warning
added the new
bad_decimal_formatenum value to the//response property for the response status - warning
added the new
non_finite_numberenum value to the//response property for the response status - warning
added the new
null_bytes_in_paramsenum value to the//response property for the response status - info
added the non-success response with the status
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added the non-success response with the status
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added the non-success response with the status
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added the non-success response with the status
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added the non-success response with the status
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added the non-success response with the status
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added the non-success response with the status
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added the non-success response with the status
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added the non-success response with the status
- warning
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endpoint added
This list may be incomplete.
- info