channels.mark

This method is deprecated.

Documentation Tester

Sets the read cursor in a channel.

Facts

Method URL: https://slack.com/api/channels.mark

Preferred HTTP method: POST

Accepted content types: application/x-www-form-urlencoded, application/json

Rate limiting: Tier 3

Works with:

Token type	Required scope(s)
bot	`channels:manage`
user	`channels:write`
classic bot	`bot`

This method is deprecated. It will stop functioning in February 2021 and will not work with newly created apps after June 10th, 2020. Learn more.

Please use these methods instead:

conversations.mark

This method moves the read cursor in a channel.

Arguments

tokenRequired

Authentication token bearing required scopes. Tokens should be passed as an HTTP Authorization header or alternatively, as a POST parameter.

Examplexxxx-xxxxxxxxx-xxxx

channelRequired

Channel or conversation to set the read cursor for.

ExampleC012345678

tsRequired

Unique identifier of message you want marked as most recently seen in this conversation.

Example1593473566.000200

This method supports application/json via HTTP POST. Present your token in your request's Authorization header. Learn more.

Response

Common successful response

When successful, just returns a basic OK response.

{
    "ok": true
}

Common error response

Typical error response

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

After making this call, the mark is saved to the database and broadcast via the message server to all open connections for the calling user.

Clients should try to avoid making this call too often. When needing to mark a read position, a client should set a timer before making the call. In this way, any further updates needed during the timeout will not generate extra calls (just one per channel). This is useful for when reading scroll-back history, or following a busy live channel. A timeout of 5 seconds is a good starting point. Be sure to flush these calls on shutdown/logout.

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 params in the response.

Error	Description
`channel_not_found`	Value passed for `channel` was invalid.
`invalid_timestamp`	Value passed for `timestamp` was invalid.
`not_in_channel`	Caller is not a member of the channel.
`not_authed`	No authentication token 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.
`account_inactive`	Authentication token is for a deleted user or workspace.
`token_revoked`	Authentication token is for a deleted user or workspace or the app has been removed.
`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.
`org_login_required`	The workspace is undergoing an enterprise migration and will not be available until migration is complete.
`ekm_access_denied`	Administrators have suspended the ability to post a message.
`missing_scope`	The token used is not granted the specific scope permissions required to complete this request.
`not_allowed_token_type`	The token type used in this request is not allowed.
`method_deprecated`	The method called is retired and no longer accepts requests. Examine the error closely for suggestions on alternative methods to use or browse api.slack.com/changelog for more information.
`deprecated_endpoint`	The endpoint has been deprecated.
`two_factor_setup_required`	Two factor setup is required.
`enterprise_is_restricted`	The method cannot be called from an Enterprise.
`team_access_not_granted`	The token used is not granted the specific workspace access required to complete this request.
`invalid_arguments`	The method was either called with invalid arguments or some detail about the arguments passed are invalid, which is more likely when using complex arguments like blocks or attachments.
`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_array_arg`	The method was passed an array as an argument. Please only input valid strings.
`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_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_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`.
`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.
`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.
`ratelimited`	The request has been ratelimited. Refer to the `Retry-After` header for when to retry the request.
`accesslimited`	Access to this method is limited on the current network
`request_timeout`	The method was called via a `POST` request, but the `POST` data was either missing or truncated.
`service_unavailable`	The service is temporarily unavailable
`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.
`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.

Warnings

This table lists the expected warnings that this method will return. However, other warnings can be returned in the case where the service is experiencing unexpected trouble.

Warning	Description
`missing_charset`	The method was called via a `POST` request, and recommended practice for the specified `Content-Type` is to include a `charset` parameter. However, no `charset` was present. Specifically, non-form-data content types (e.g. `text/plain`) are the ones for which `charset` is recommended.
`superfluous_charset`	The method was called via a `POST` request, and the specified `Content-Type` is not defined to understand the `charset` parameter. However, `charset` was in fact present. Specifically, form-data content types (e.g. `multipart/form-data`) are the ones for which `charset` is superfluous.
`method_deprecated`	The method called has been deprecated and may soon stop functioning. Examine the warning closely for suggestions on alternative methods to use or browse api.slack.com/changelog for more information.

Was this page helpful?