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slackLists.items.update method

Facts​

DescriptionUpdates cells in a List.
Method Access
POST https://slack.com/api/slackLists.items.update
Scopes
Bot token:
User token:
Content types
application/x-www-form-urlencoded
application/json
Rate LimitsTier 3: 50+ per minute

Arguments​

Required arguments

tokenstringRequired
list_idstringRequired

ID of the List to add or update cells.

Example: F01ABCDE2FG
cellsarrayRequired

Cells to update.

Example: [{"row_id":"Rec014K005UQJ","column_id":"Col014K005UQJ","user":["U01284PCR98", "U0137181B5H"]}]

Usage info​

Lists are only available to Slack workspaces on a paid plan.

This method is used to update cells in a List.

Sample requests data​

Update text (text column)​

{
  "token": "***",
  "list_id": "F01ABCDE2FG",
  "cells": [
    {
      "column_id": "Col018B8C91TM",
      "rich_text": [
        {
          "type": "rich_text",
          "elements": [
            {
              "type": "rich_text_section",
              "elements": [
                {
                  "type": "text",
                  "text": "Updated text"
                }
              ]
            }
          ]
        }
      ],
      "row_id": "Rec018B8RR603"
    }
  ]
}

Update select option​

{
  "token": "***",
  "list_id": "F01ABCDE2FG",
  "cells": [
    {
      "column_id": "Col018AL7649G",
      "select": ["in_progress"],
      "row_id": "Rec018B8RR603"
    }
  ]
}

Update user field (multi-user)​

{
  "token": "***",
  "list_id": "F01ABCDE2FG",
  "cells": [
    {
      "column_id": "Col018B8C91V1",
      "user": ["W0QR1STU2", "U012A34BCDE"],
      "row_id": "Rec018B8RR603"
    }
  ]
}

Update date​

{
  "token": "***",
  "list_id": "F01ABCDE2FG",
  "cells": [
    {
      "column_id": "Col018AL764AE",
      "date": [ "2025-09-20"],
      "row_id": "Rec018B8RR603"
    }
  ]
}

Create new row via cells​

{
  "token": "***",
  "list_id": "F018B8C91SP",
  "cells": [
    {
      "row_id_to_create": true,
      "column_id": "Col018B8C91TM",
      "rich_text": [
        {
          "type": "rich_text",
          "elements": [
            {
              "type": "rich_text_section",
              "elements": [
                {
                  "type": "text",
                  "text": "New row title"
                }
              ]
            }
          ]
        }
      ],
      "row_id": "Rec018B8RR603"
    }
  ]
}

Rich text cell (rich_text_column)​

{
  "token": "***",
  "list_id": "F018B8C91SP",
  "cells": [
    {
      "column_id": "Col018B8C91TM",
      "rich_text": [
        {
          "type": "rich_text",
          "elements": [
            {
              "type": "rich_text_section",
              "elements": [
                {
                  "type": "text",
                  "text": "Notes"
                }
              ]
            }
          ]
        }
      ],
      "row_id": "Rec018B8RR603"
    }
  ]
}

Response​

Typical success response for all scenarios above

{
  "ok": true
}

Typical error response

{
  "ok": false,
  "error": "invalid_row_id"
}

Errors​

This table lists the expected errors that this method could return. However, other errors can be returned in the case where the service is down or other unexpected factors affect processing. Callers should always check the value of the ok parameter in the response.

Error
Description
access_denied

Access to a resource specified in the request is denied.

accesslimited

Access to this method is limited on the current network

account_inactive

Authentication token is for a deleted user or workspace when using a bot token.

channel_not_found

The channel cannot be found.

column_id_not_provided

The column_id or column_id_to_create field must be provided.

column_not_found

The column was not found.

deprecated_endpoint

The endpoint has been deprecated.

ekm_access_denied

Administrators have suspended the ability to post a message.

enterprise_is_restricted

The method cannot be called from an Enterprise.

fatal_error

The server could not complete your operation(s) without encountering a catastrophic error. It's possible some aspect of the operation succeeded before the error was raised.

file_not_found

Invalid file ID for this List.

internal_error

The server could not complete your operation(s) without encountering an error, likely due to a transient issue on our end. It's possible some aspect of the operation succeeded before the error was raised.

invalid_arg_name

The method was passed an argument whose name falls outside the bounds of accepted or expected values. This includes very long names and names with non-alphanumeric characters other than _. If you get this error, it is typically an indication that you have made a very malformed API call.

invalid_arguments

The method was called with invalid arguments.

invalid_array_arg

The method was passed an array as an argument. Please only input valid strings.

invalid_attachment

Invalid attachment provided.

invalid_auth

Some aspect of authentication cannot be validated. Either the provided token is invalid or the request originates from an IP address disallowed from making the request.

invalid_blocks

Rich text payload supplied is invalid.

invalid_charset

The method was called via a POST request, but the charset specified in the Content-Type header was invalid. Valid charset names are: utf-8 iso-8859-1.

invalid_column_id

Invalid column ID for this List.

invalid_date

Date supplied is invalid.

invalid_email

Email supplied is invalid.

invalid_form_data

The method was called via a POST request with Content-Type application/x-www-form-urlencoded or multipart/form-data, but the form data was either missing or syntactically invalid.

invalid_input_type

Supplied value key or value type is invalid for the given column type.

invalid_link

Message archive link supplied is invalid.

invalid_message

Invalid message provided.

invalid_option_id

Option supplied is invalid.

invalid_phone_number

Invalid phone number provided.

invalid_post_type

The method was called via a POST request, but the specified Content-Type was invalid. Valid types are: application/json application/x-www-form-urlencoded multipart/form-data text/plain.

invalid_row_id

Invalid row ID for this List.

invalid_text_block

Rich text payload supplied is invalid.

invalid_vote_value

Invalid vote value is supplied.

list_not_found

The List was not found.

method_deprecated

The method has been deprecated.

missing_post_type

The method was called via a POST request and included a data payload, but the request did not include a Content-Type header.

missing_scope

The token used is not granted the specific scope permissions required to complete this request.

no_permission

The workspace token used in this request does not have the permissions necessary to complete the request. Make sure your app is a member of the conversation it's attempting to post a message to.

not_allowed_token_type

The token type used in this request is not allowed.

not_authed

No authentication token provided.

org_login_required

The workspace is undergoing an enterprise migration and will not be available until migration is complete.

over_cell_fields_limit

The supplied cell fields are over the cell field maximum.

permission_denied

The user does not have permission to perform this action.

ratelimited

The request has been ratelimited. Refer to the Retry-After header for when to retry the request.

request_timeout

The method was called via a POST request, but the POST data was either missing or truncated.

row_id_not_provided

The row_id or row_id_to_create field must be provided.

row_not_found

The row was not found.

service_unavailable

The service is temporarily unavailable

team_access_not_granted

The token used is not granted the specific workspace access required to complete this request.

team_added_to_org

The workspace associated with your request is currently undergoing migration to an Enterprise Organization. Web API and other platform operations will be intermittently unavailable until the transition is complete.

team_not_found

The team cannot be found.

token_expired

Authentication token has expired

token_revoked

Authentication token is for a deleted user or workspace or the app has been removed when using a user token.

two_factor_setup_required

Two factor setup is required.

uneditable_column

The column cannot be updated.

user_not_found

The user cannot be found.