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PATCH
https://api.grainledger.com
/
api
/
v1
/
bills
/
{id}
Update bill
curl --request PATCH \
  --url https://api.grainledger.com/api/v1/bills/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Organization-Id: <x-organization-id>' \
  --data '
{
  "billNumber": "INV-1042",
  "billDate": "2026-06-15",
  "dueDate": "2026-07-15",
  "amount": 850
}
'
const options = {
  method: 'PATCH',
  headers: {
    'X-Organization-Id': '<x-organization-id>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    billNumber: 'INV-1042',
    billDate: '2026-06-15',
    dueDate: '2026-07-15',
    amount: 850
  })
};

fetch('https://api.grainledger.com/api/v1/bills/{id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
import requests

url = "https://api.grainledger.com/api/v1/bills/{id}"

payload = {
    "billNumber": "INV-1042",
    "billDate": "2026-06-15",
    "dueDate": "2026-07-15",
    "amount": 850
}
headers = {
    "X-Organization-Id": "<x-organization-id>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)
{
  "id": "<string>",
  "billNumber": "<string>",
  "billDate": "2023-11-07T05:31:56Z",
  "dueDate": "2023-11-07T05:31:56Z",
  "amount": 123,
  "status": "<string>",
  "vendorId": "<string>",
  "fundId": "<string>"
}
{
  "message": "You do not have access to this organization."
}
{
  "message": "You do not have access to this organization."
}
{
  "message": "You do not have access to this organization."
}
{
  "message": "You do not have access to this organization."
}
{
  "message": "You do not have access to this organization."
}
{
  "message": "You do not have access to this organization."
}
{
  "message": "You do not have access to this organization."
}

Authorizations

Authorization
string
header
required

The access token received from the authorization server in the OAuth 2.0 flow.

Headers

X-Organization-Id
string
required

Organization ID for multi-tenant data access

Path Parameters

id
string
required

Resource ID

Body

application/json
billNumber
string
required
Example:

"INV-1042"

billDate
string<date>
required
Example:

"2026-06-15"

dueDate
string<date>
required
Example:

"2026-07-15"

amount
number
required
Example:

850

vendorId
string
fundId
string
notes
string
Example:

"HVAC maintenance contract"

Response

Updated bill

id
string
billNumber
string
billDate
string<date-time>
dueDate
string<date-time>
amount
number
status
string
vendorId
string | null
fundId
string | null
Last modified on July 8, 2026