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Report spend entered by hand for a connection's campaigns or source campaigns; a later report for the same key replaces it

POST
/v1/buyer/costs
curl --request POST \
  --url https://example.com/v1/buyer/costs \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "connection_id": 1, "costs": [ { "campaign_id": 1, "from": "2026-04-15T12:00:00Z", "placement": "example", "source_campaign": "example", "spend": { "currency": "example", "value": "example" }, "to": "2026-04-15T12:00:00Z" } ] }'

Who: a workspace’s buyer, or its key. API keys with the buyer:write scope.

Authorizations

Section titled “Authorizations”

Parameters

Section titled “Parameters”

Header Parameters

Section titled “Header Parameters”
Idempotency-Key
string
<= 64 characters

Made once per action and sent again on every retry of it, so the service acts once: the request_id of the create or money-moving call; a new one when left out

Request Bodyrequired

Section titled “Request Bodyrequired”
Media typeapplication/json
object
connection_id
required
integer format: int64
costs
required
Array<object>
object
campaign_id
integer format: int64
from
required
string format: date-time
placement
string
source_campaign
string
spend
required
object
currency
required
string
value
required
string
to
required
string format: date-time

Example generated

{
  "connection_id": 1,
  "costs": [
    {
      "campaign_id": 1,
      "from": "2026-04-15T12:00:00Z",
      "placement": "example",
      "source_campaign": "example",
      "spend": {
        "currency": "example",
        "value": "example"
      },
      "to": "2026-04-15T12:00:00Z"
    }
  ]
}

Responses

Section titled “Responses”

201

Section titled “201”

Created

Media typeapplication/json
object
connection
required
object
id
required
integer format: int64
name
string
id
required
string
origin
required
string | null
Allowed values: pull manual
reported_at
required
string format: date-time
reported_by
required
Any of:
object
account
string
id
string
kind
required
string | null
Allowed values: user api_key service system postback rule tuner schedule
name
string
sequence
required
integer format: int64
slices
required
Array<object>
object
campaign_id
required
integer format: int64
from
required
string format: date-time
placement
required
string
source_campaign
required
string
spend
required
Any of:
object
amount_micros
required
integer format: int64
currency
required
string
to
required
string format: date-time
workspace_id
required
integer format: int64

Example 

{
  "origin": "pull",
  "reported_by": {
    "kind": "user"
  }
}

default

Section titled “default”

An error, as go-commons apperr maps it

Media typeapplication/json
object
error
required
object
code
required
string
fields
object
key
additional properties
string
message
required
string

Example generated

{
  "error": {
    "code": "example",
    "fields": {
      "additionalProperty": "example"
    },
    "message": "example"
  }
}