Bundles

Add documents to a bundle

Adds draft documents to the bundle, up to 50 in total. A document’s parties join the bundle’s parties: a party whose email address the bundle already has is matched to it, and a new address becomes a new bundle party. A document without parties gets every bundle party. The bundle’s settings are written onto the added documents. A document is refused with 409 when one email address has a different signing method, verification, role or personal number than in the bundle, or when its signing mode or party order differs from the bundle’s.

Works only while the bundle is a DRAFT. On a sent bundle it returns 409 INVALID_STATE; withdraw it first with POST /api/v1/bundles/{id}/withdraw.

Permission required: EDIT_DOCUMENT on the workspace, and access to every document in the bundle. Requires a Team plan.

POST

api

bundles

{id}

documents

Add documents to a bundle

curl --request POST \
  --url https://app.sajn.se/api/v1/bundles/{id}/documents \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "documentIds": [
    "cm4k2x9p10022abcd1234efgh"
  ]
}
'

import requests

url = "https://app.sajn.se/api/v1/bundles/{id}/documents"

payload = { "documentIds": ["cm4k2x9p10022abcd1234efgh"] }
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({documentIds: ['cm4k2x9p10022abcd1234efgh']})
};

fetch('https://app.sajn.se/api/v1/bundles/{id}/documents', 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://app.sajn.se/api/v1/bundles/{id}/documents",
  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([
    'documentIds' => [
        'cm4k2x9p10022abcd1234efgh'
    ]
  ]),
  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://app.sajn.se/api/v1/bundles/{id}/documents"

	payload := strings.NewReader("{\n  \"documentIds\": [\n    \"cm4k2x9p10022abcd1234efgh\"\n  ]\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://app.sajn.se/api/v1/bundles/{id}/documents")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"documentIds\": [\n    \"cm4k2x9p10022abcd1234efgh\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.sajn.se/api/v1/bundles/{id}/documents")

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  \"documentIds\": [\n    \"cm4k2x9p10022abcd1234efgh\"\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "id": "cm4k2x9p10003abcd1234efgh",
  "name": "Anställningspaket – Kai Lindqvist",
  "status": "DRAFT",
  "subject": "Ditt anställningsavtal från Exempelbolaget AB",
  "message": "Hej Kai! Här är ditt anställningsavtal. Signera det med BankID senast den 28 oktober.",
  "expiresAt": "2026-10-28T22:00:00.000Z",
  "signingMode": "PARALLEL",
  "language": "sv",
  "reminderIntervalDays": 3,
  "signableAfterExpired": false,
  "internalRecipients": [
    "[email protected]"
  ],
  "nationalIdDisplayMode": "FULL",
  "openVerification": "PIN",
  "sendPlainTextEmailOnly": false,
  "redirectUrl": null,
  "redirectEnabled": true,
  "documentCount": 1,
  "createdAt": "2026-09-28T09:12:00.000Z",
  "updatedAt": "2026-09-28T09:15:00.000Z",
  "documents": [
    {
      "id": "cm4k2x9p10003abcd1234efgh",
      "name": "Anställningsavtal – Kai Lindqvist",
      "status": "DRAFT",
      "parties": [
        {
          "id": "cm4k2x9p10004abcd1234efgh",
          "bundlePartyId": "cm4k2x9p10004abcd1234efgh",
          "name": "Kai Lindqvist",
          "email": "[email protected]",
          "role": "SIGNER",
          "signingStatus": "NOT_SIGNED",
          "signedAt": null
        }
      ]
    }
  ],
  "parties": [
    {
      "id": "cm4k2x9p10004abcd1234efgh",
      "name": "Kai Lindqvist",
      "email": "[email protected]",
      "phone": "+46701740605",
      "role": "SIGNER",
      "signingOrder": 1,
      "delivery": [
        "EMAIL"
      ],
      "signatureMethod": "SE_BANKID",
      "signVerification": "PIN",
      "openVerification": "PIN",
      "status": "PENDING",
      "documentIds": [
        "cm4k2x9p10003abcd1234efgh"
      ]
    }
  ]
}

{
  "code": "VALIDATION_FAILED",
  "message": "Invalid input: expected array, received undefined",
  "userMessage": "Förfrågan innehåller ogiltiga värden.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2",
  "issues": [
    {
      "path": "documentIds",
      "code": "INVALID_TYPE",
      "message": "Invalid input: expected array, received undefined"
    }
  ]
}

{
  "code": "UNAUTHORIZED",
  "message": "Invalid API token",
  "userMessage": "Ogiltig API-nyckel",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "INSUFFICIENT_SCOPE",
  "message": "Insufficient OAuth scope: requires documents:write",
  "userMessage": "Applikationen saknar behörighet (scope) för denna åtgärd.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2",
  "requiredScopes": [
    "documents:write"
  ],
  "grantedScopes": [
    "profile:read"
  ]
}

{
  "code": "NOT_FOUND",
  "message": "Document not found",
  "userMessage": "Resursen hittades inte.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2",
  "resource": "document"
}

{
  "code": "INVALID_STATE",
  "message": "The resource's current state doesn't allow the operation, such as editing a document that was already sent or downloading a file that isn't produced yet.",
  "userMessage": "Åtgärden är inte möjlig i resursens nuvarande status.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "RATE_LIMITED",
  "message": "API rate limit exceeded",
  "userMessage": "För många förfrågningar. Försök igen om en stund.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "INTERNAL_ERROR",
  "message": "Internal server error",
  "userMessage": "Något gick fel.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "UPSTREAM_UNAVAILABLE",
  "message": "A service the operation depends on, such as an eID provider or a connected integration, failed or is unavailable. Retry with exponential backoff.",
  "userMessage": "En extern tjänst svarar inte just nu. Försök igen om en stund.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

Authorizations

Authorization

string

header

required

API key, e.g. Authorization: Bearer sajn_svc_.... Not scope-limited: acts with its owner's workspace role.

Headers

Sajn-Version

enum<string>

API version for this request. Without it, the request uses the organization's default version; an organization without a default is pinned to the latest version by its first request.

Available options:

2026-09,

2026-10

Sajn-Workspace

string

ID of the workspace this request acts in, from GET /api/v1/workspaces. Without it, an API key acts in its default workspace. The token's user must be a member of the workspace; an OAuth token only accepts the workspace it was granted for. A workspace that doesn't exist or can't be reached returns 403 WORKSPACE_ACCESS_DENIED.

Idempotency-Key

string

Makes retries safe. A retry with the same key and the same request replays the stored response for 24 hours (header Idempotent-Replayed: true); the same key with a different request returns 400.

Maximum string length: 255

Path Parameters

string

required

The bundle ID.

Body

application/json

Body

documentIds

string[]

required

Draft documents to add. Each one must be a DRAFT in the workspace that isn't in another bundle, and each of its parties needs an email address.

Required array length: 1 - 50 elements

Minimum string length: 1

Response

200

string

required

The document ID.

name

string | null

required

The bundle name, shown as the heading of the bundle page and in the invitation.

status

enum<string>

required

DRAFT while you build it, and again after a withdraw. OPEN from the send until every document is resolved, then COMPLETED. CANCELED after a cancel.

Available options:

DRAFT,

OPEN,

COMPLETED,

CANCELED

subject

string | null

required

The subject line of the invitation email.

message

string | null

required

A message included in every invitation.

expiresAt

string<date-time> | null

required

The expiry date of the bundle. Every document in it gets the same one.

signingMode

enum<string>

required

How the parties sign: PARALLEL, all at once, or SEQUENTIAL, one at a time in the order of each party's signingOrder. The order runs across every document in the bundle.

Available options:

PARALLEL,

SEQUENTIAL

language

enum<string>

required

Language of the bundle page and the emails to the parties, an ISO 639-1 code such as sv.

Available options:

sv,

en,

no,

da,

fi,

de,

is,

es,

fr,

it

reminderIntervalDays

integer | null

required

Days between automatic reminders. 0 turns them off, and null uses the default of 3.

Required range: -9007199254740991 <= x <= 9007199254740991

signableAfterExpired

boolean

required

Whether the documents can still be signed after expiresAt.

internalRecipients

string[]

required

Email addresses that receive a copy of each sealed PDF once its document is completed.

nationalIdDisplayMode

enum<string> | null

required

How national identity numbers are displayed to signers: FULL, PARTIAL, or NONE. null keeps each document's own setting.

Available options:

FULL,

PARTIAL,

NONE,

null

openVerification

enum<string> | null

required

Verification every party passes before the document opens: PIN, SMS, EMAIL, or an eID such as SE_BANKID. null means none. A party's own openVerification overrides it.

Available options:

PIN,

SMS,

EMAIL,

SE_BANKID,

NO_BANKID_BIOMETRIC,

NO_BANKID_HIGH,

DK_MITID,

DK_MITID_ERHVERV,

FI_FTN,

NL_IDIN,

null

sendPlainTextEmailOnly

boolean | null

required

Send plain text invitations only, without HTML. null inherits the workspace default.

redirectUrl

string | null

required

URL to send a party to once they have signed.

redirectEnabled

boolean

required

Whether redirectUrl is used.

documentCount

integer

required

The number of documents in documents.

Required range: -9007199254740991 <= x <= 9007199254740991

createdAt

string<date-time>

required

When the document was created.

updatedAt

string<date-time>

required

When the document was last updated.

documents

object[]

required

The documents in the bundle, oldest first.

Show child attributes

parties

object[]

required

The bundle's parties, in signing order.

Show child attributes

Add documents to a bundle

curl --request POST \
  --url https://app.sajn.se/api/v1/bundles/{id}/documents \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "documentIds": [
    "cm4k2x9p10022abcd1234efgh"
  ]
}
'

import requests

url = "https://app.sajn.se/api/v1/bundles/{id}/documents"

payload = { "documentIds": ["cm4k2x9p10022abcd1234efgh"] }
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({documentIds: ['cm4k2x9p10022abcd1234efgh']})
};

fetch('https://app.sajn.se/api/v1/bundles/{id}/documents', 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://app.sajn.se/api/v1/bundles/{id}/documents",
  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([
    'documentIds' => [
        'cm4k2x9p10022abcd1234efgh'
    ]
  ]),
  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://app.sajn.se/api/v1/bundles/{id}/documents"

	payload := strings.NewReader("{\n  \"documentIds\": [\n    \"cm4k2x9p10022abcd1234efgh\"\n  ]\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://app.sajn.se/api/v1/bundles/{id}/documents")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"documentIds\": [\n    \"cm4k2x9p10022abcd1234efgh\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.sajn.se/api/v1/bundles/{id}/documents")

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  \"documentIds\": [\n    \"cm4k2x9p10022abcd1234efgh\"\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "id": "cm4k2x9p10003abcd1234efgh",
  "name": "Anställningspaket – Kai Lindqvist",
  "status": "DRAFT",
  "subject": "Ditt anställningsavtal från Exempelbolaget AB",
  "message": "Hej Kai! Här är ditt anställningsavtal. Signera det med BankID senast den 28 oktober.",
  "expiresAt": "2026-10-28T22:00:00.000Z",
  "signingMode": "PARALLEL",
  "language": "sv",
  "reminderIntervalDays": 3,
  "signableAfterExpired": false,
  "internalRecipients": [
    "[email protected]"
  ],
  "nationalIdDisplayMode": "FULL",
  "openVerification": "PIN",
  "sendPlainTextEmailOnly": false,
  "redirectUrl": null,
  "redirectEnabled": true,
  "documentCount": 1,
  "createdAt": "2026-09-28T09:12:00.000Z",
  "updatedAt": "2026-09-28T09:15:00.000Z",
  "documents": [
    {
      "id": "cm4k2x9p10003abcd1234efgh",
      "name": "Anställningsavtal – Kai Lindqvist",
      "status": "DRAFT",
      "parties": [
        {
          "id": "cm4k2x9p10004abcd1234efgh",
          "bundlePartyId": "cm4k2x9p10004abcd1234efgh",
          "name": "Kai Lindqvist",
          "email": "[email protected]",
          "role": "SIGNER",
          "signingStatus": "NOT_SIGNED",
          "signedAt": null
        }
      ]
    }
  ],
  "parties": [
    {
      "id": "cm4k2x9p10004abcd1234efgh",
      "name": "Kai Lindqvist",
      "email": "[email protected]",
      "phone": "+46701740605",
      "role": "SIGNER",
      "signingOrder": 1,
      "delivery": [
        "EMAIL"
      ],
      "signatureMethod": "SE_BANKID",
      "signVerification": "PIN",
      "openVerification": "PIN",
      "status": "PENDING",
      "documentIds": [
        "cm4k2x9p10003abcd1234efgh"
      ]
    }
  ]
}

{
  "code": "VALIDATION_FAILED",
  "message": "Invalid input: expected array, received undefined",
  "userMessage": "Förfrågan innehåller ogiltiga värden.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2",
  "issues": [
    {
      "path": "documentIds",
      "code": "INVALID_TYPE",
      "message": "Invalid input: expected array, received undefined"
    }
  ]
}

{
  "code": "UNAUTHORIZED",
  "message": "Invalid API token",
  "userMessage": "Ogiltig API-nyckel",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "INSUFFICIENT_SCOPE",
  "message": "Insufficient OAuth scope: requires documents:write",
  "userMessage": "Applikationen saknar behörighet (scope) för denna åtgärd.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2",
  "requiredScopes": [
    "documents:write"
  ],
  "grantedScopes": [
    "profile:read"
  ]
}

{
  "code": "NOT_FOUND",
  "message": "Document not found",
  "userMessage": "Resursen hittades inte.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2",
  "resource": "document"
}

{
  "code": "INVALID_STATE",
  "message": "The resource's current state doesn't allow the operation, such as editing a document that was already sent or downloading a file that isn't produced yet.",
  "userMessage": "Åtgärden är inte möjlig i resursens nuvarande status.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "RATE_LIMITED",
  "message": "API rate limit exceeded",
  "userMessage": "För många förfrågningar. Försök igen om en stund.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "INTERNAL_ERROR",
  "message": "Internal server error",
  "userMessage": "Något gick fel.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

{
  "code": "UPSTREAM_UNAVAILABLE",
  "message": "A service the operation depends on, such as an eID provider or a connected integration, failed or is unavailable. Retry with exponential backoff.",
  "userMessage": "En extern tjänst svarar inte just nu. Försök igen om en stund.",
  "requestId": "req_V1StGXR8Z5jdHi6BmyT2"
}

Get started

Core concepts

Guides

Webhooks

API fundamentals

Upgrading

sajn Login

API reference

Add documents to a bundle

Authorizations

Headers

Path Parameters

Body

Response