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PATCH
/
project-invoice-milestones
/
{id}
Update a project invoice milestone
curl --request PATCH \
  --url https://www.ruddr.io/api/workspace/project-invoice-milestones/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "typeId": "custom",
  "date": "2023-12-25",
  "quantity": 123,
  "rate": 123,
  "fee": 123,
  "name": "<string>",
  "invoiceItemId": "<string>"
}
'
{
  "id": "a8b2c4d6-3e1f-4a9b-8c7d-f5e2a1b9c6d3",
  "typeId": "recurring",
  "date": "2026-07-31",
  "quantity": 10,
  "rate": 2650,
  "fee": 26500,
  "name": "Monthly Services - July 2026",
  "createdAt": "2026-02-25T17:42:21.203Z",
  "project": {
    "id": "d077258e-2158-4f34-aabd-97e971d0c18d",
    "name": "Cloud Infrastructure Services",
    "client": {
      "id": "aa39afdb-e168-4956-b061-41c7c62e8c2e",
      "name": "Paul's Boutique"
    }
  },
  "invoiceItem": {
    "id": "aba04832-216c-463e-8998-c520948f707c",
    "name": "Consulting Services"
  },
  "invoiced": false
}
Scheduled invoicing for a fixed fee project. This is only available for projects that have a billing type of “fixed” or “fixed_recurring”.

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

​
id
string
required

The project invoice milestone uuid

Body

application/json
​
typeId
enum<string>

The type of invoice milestone. Identifies whether the milestone is one-off ("custom", the default) or recurring ("recurring").

Available options:
custom,
recurring
​
date
string<date>

The date of the milestone. Must be in the form YYYY-MM-DD.

​
quantity
number | null

The quantity for calculating the fee. Required when rate is provided.

​
rate
number | null

The rate for calculating the fee. Required when quantity is provided.

​
fee
number

The total amount for the milestone. Required when quantity and rate are not provided.

​
name
string

The name of the milestone (max 255 chars).

​
invoiceItemId
string

The invoice item ID (uuid) for this milestone.

Response

200

​
id
string

The unique identifier for the object.

​
typeId
enum<string>

The type of invoice milestone. Identifies whether the milestone is one-off ("custom", the default) or recurring ("recurring").

Available options:
custom,
recurring
​
date
string<date>

The date of the milestone. Will be in the form YYYY-MM-DD.

​
quantity
number | null

The quantity used to calculate the fee.

​
rate
number | null

The rate used to calculate the fee.

​
fee
number

The total amount for the milestone.

​
name
string

The name of the milestone.

​
createdAt
string<date-time>

The timestamp when the object was created.

​
project
object

The project this milestone belongs to.

​
invoiceItem
object

The invoice item associated with this milestone.

​
invoiced
boolean

Whether the milestone has been invoiced.