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POST
/
fiscal-periods
/
{id}
/
reopen-fiscal-year
Reopen a previously closed fiscal year (prior-period adjustment)
curl --request POST \
  --url https://api.arcuserp.com/v1/fiscal-periods/{id}/reopen-fiscal-year \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "fiscal_year": 2024,
  "reason": "Prior-period adjustment: vendor invoice for FY2024 received in FY2025"
}
'
import requests

url = "https://api.arcuserp.com/v1/fiscal-periods/{id}/reopen-fiscal-year"

payload = {
"fiscal_year": 2024,
"reason": "Prior-period adjustment: vendor invoice for FY2024 received in FY2025"
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}

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

print(response.text)
const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
fiscal_year: 2024,
reason: 'Prior-period adjustment: vendor invoice for FY2024 received in FY2025'
})
};

fetch('https://api.arcuserp.com/v1/fiscal-periods/{id}/reopen-fiscal-year', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
CURLOPT_URL => "https://api.arcuserp.com/v1/fiscal-periods/{id}/reopen-fiscal-year",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'fiscal_year' => 2024,
'reason' => 'Prior-period adjustment: vendor invoice for FY2024 received in FY2025'
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
package main

import (
"fmt"
"strings"
"net/http"
"io"
)

func main() {

url := "https://api.arcuserp.com/v1/fiscal-periods/{id}/reopen-fiscal-year"

payload := strings.NewReader("{\n \"fiscal_year\": 2024,\n \"reason\": \"Prior-period adjustment: vendor invoice for FY2024 received in FY2025\"\n}")

req, _ := http.NewRequest("POST", url, payload)

req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.post("https://api.arcuserp.com/v1/fiscal-periods/{id}/reopen-fiscal-year")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"fiscal_year\": 2024,\n \"reason\": \"Prior-period adjustment: vendor invoice for FY2024 received in FY2025\"\n}")
.asString();
require 'uri'
require 'net/http'

url = URI("https://api.arcuserp.com/v1/fiscal-periods/{id}/reopen-fiscal-year")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"fiscal_year\": 2024,\n \"reason\": \"Prior-period adjustment: vendor invoice for FY2024 received in FY2025\"\n}"

response = http.request(request)
puts response.read_body
{
  "data": {
    "reversal_journal_entry_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "original_journal_entry_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "fiscal_year": 123,
    "period_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "period_status": "closed",
    "balanced": true,
    "idempotent": true
  }
}
{
"error": "fiscal_year_not_closed",
"code": "fiscal_year_not_closed",
"hint": "<string>"
}
{
"error": "not_found",
"code": "not_found",
"type": "not_found",
"hint": "The requested order does not exist or does not belong to this entity.",
"param": "expand[0]",
"required": "accounts:read",
"request_id": "req_abc123"
}
{
"error": "not_found",
"code": "not_found",
"type": "not_found",
"hint": "The requested order does not exist or does not belong to this entity.",
"param": "expand[0]",
"required": "accounts:read",
"request_id": "req_abc123"
}
{
"error": "no_closing_je_found",
"code": "no_closing_je_found",
"hint": "<string>",
"reversal_journal_entry_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
{
"error": "not_found",
"code": "not_found",
"type": "not_found",
"hint": "The requested order does not exist or does not belong to this entity.",
"param": "expand[0]",
"required": "accounts:read",
"request_id": "req_abc123"
}

Authorizations

Authorization
string
header
required

API key issued per entity via Settings > Developers > API Keys. Each key carries scopes (e.g. orders:read, products:write). Bearer token format: Authorization: Bearer ark_live_ent_Test keys use ark_test_ent_. Both are issued per entity
via Settings > Developers > API Keys.

Path Parameters

id
string<uuid>
required

UUID of the year-end accounting period (used for URL consistency with the close-fiscal-year triplet; entity_id and fiscal_year are inferred from auth + request body).

Body

application/json
fiscal_year
integer
required

Fiscal year to reopen (e.g. 2024). Must be currently in year_end_closed status.

Example:

2024

reason
string
required

Operator-supplied justification for the reopen (SOX-grade audit trail; required).

Maximum string length: 500
Example:

"Prior-period adjustment: vendor invoice for FY2024 received in FY2025"

Response

Fiscal year reopened (or idempotent return of existing reversal JE)

data
object