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PUT
/
accounting
/
bills
/
{billId}
/
lineItems
/
{lineItemId}
cURL
curl --request PUT \
  --url https://api.maesn.dev/accounting/bills/{billId}/lineItems/{lineItemId} \
  --header 'Content-Type: application/json' \
  --data '
{
  "accountId": "6733a433-9662-4a40-8e36-e38ebda94fe1",
  "accountNumber": "200",
  "deferredEndDate": "2021-06-01T00:00:00Z",
  "deferredStartDate": "2021-01-01T00:00:00Z",
  "description": "SEOUL Guest Chair, red",
  "dimensions": [
    {
      "name": "C1",
      "categoryName": "CostCenter"
    }
  ],
  "itemId": "4f3a2hf4-5b8e-4d1b-8a0c-9f6e7d2f3e4b",
  "itemName": "RED CHAIR",
  "quantity": 1,
  "taxCode": "03",
  "taxRatePercentage": 19,
  "totalDiscountAmount": 10,
  "totalDiscountPercentage": 10,
  "totalGrossAmount": 109,
  "totalNetAmount": 100,
  "totalTaxAmount": 19,
  "unitAmount": 100,
  "unitDiscountAmount": 10,
  "unitDiscountPercentage": 10,
  "unitName": "PIECE"
}
'
{
  "meta": {
    "warnings": [
      "Field not used by target system"
    ],
    "pagination": {
      "total": 125,
      "perPage": 50,
      "currentPage": 1,
      "totalPages": 3
    }
  },
  "data": {
    "id": "987a2b3c-4d5e-6f7g-8h9i-0j1k2l3m4n5o",
    "accountId": "6733a433-9662-4a40-8e36-e38ebda94fe1",
    "accountNumber": "200",
    "createdDate": "2021-01-01T00:00:00Z",
    "deferredEndDate": "2021-06-01T00:00:00Z",
    "deferredStartDate": "2021-01-01T00:00:00Z",
    "description": "SEOUL Guest Chair, red",
    "dimensions": [
      {
        "name": "C1",
        "categoryName": "CostCenter"
      }
    ],
    "itemId": "4f3a2hf4-5b8e-4d1b-8a0c-9f6e7d2f3e4b",
    "itemName": "RED CHAIR",
    "quantity": 1,
    "taxCode": "03",
    "taxRatePercentage": 19,
    "totalDiscountAmount": 10,
    "totalDiscountPercentage": 10,
    "totalGrossAmount": 109,
    "totalNetAmount": 100,
    "totalTaxAmount": 19,
    "unitAmount": 100,
    "unitDiscountAmount": 10,
    "unitDiscountPercentage": 10,
    "unitName": "PIECE",
    "updatedDate": "2021-01-01T00:00:00Z"
  }
}

Documentation Index

Fetch the complete documentation index at: https://docs.maesn.com/llms.txt

Use this file to discover all available pages before exploring further.

​
Field support per integration

Please ensure the query parameter companyId is accurately filled with the division code. You can obtain this values by using the GET Companies endpoints available under the Authentication section.
Supported Response Fields:
​
accountId
string
required
​
deferredEndDate
string
Date to identify the start of the range for deferred costs. Use together with deferredStartDate.
​
deferredStartDate
string
Date to identify the start of the range for deferred costs. Use together with deferredEndDate.
​
description
string
​
dimensions
Dimension[]
​
taxCode
string
​
taxRatePercentage
number
​
totalNetAmount
number
The total amount for the item excluding tax.
When the taxCode is provided and is of type INCLUSIVE, then the totalNetAmount will be treated as a gross amount (i.e., including tax).
​
totalTaxAmount
number

Headers

​
X-API-KEY
string

API key

​
X-ACCOUNT-KEY
string

Account key

Path Parameters

​
billId
string
required
​
lineItemId
string
required

Query Parameters

​
companyId
string

Body

application/json
​
accountId
string
Example:

"6733a433-9662-4a40-8e36-e38ebda94fe1"

​
accountNumber
string
Example:

"200"

​
deferredEndDate
string
Example:

"2021-06-01T00:00:00Z"

​
deferredStartDate
string
Example:

"2021-01-01T00:00:00Z"

​
description
string
Example:

"SEOUL Guest Chair, red"

​
dimensions
object[]
​
itemId
string
Example:

"4f3a2hf4-5b8e-4d1b-8a0c-9f6e7d2f3e4b"

​
itemName
string
Example:

"RED CHAIR"

​
quantity
number
Example:

1

​
taxCode
string
Example:

"03"

​
taxRatePercentage
number
Example:

19

​
totalDiscountAmount
number
Example:

10

​
totalDiscountPercentage
number
Example:

10

​
totalGrossAmount
number
Example:

109

​
totalNetAmount
number
Example:

100

​
totalTaxAmount
number
Example:

19

​
unitAmount
number
Example:

100

​
unitDiscountAmount
number
Example:

10

​
unitDiscountPercentage
number
Example:

10

​
unitName
string
Example:

"PIECE"

Response

200 - application/json
​
meta
object
​
data
object
Last modified on May 4, 2026