Retrieves the total number of each member's unread messages in a specific group channel. This action is only applicable for users in a group channel.
The following table lists the parameters that this action supports.
Specifies the URL of the target channel.
Specifies a comma-separated string of one or more IDs of the target users. Urlencoding each user ID is recommended (for example,
If successful, this action returns the number of unread messages by channel members in the response body.
An object of key-value items. The key indicates the channel member's user ID and the value indicates the count of the member's unread messages in the channel.
In the case of an error, an error object is returned. A detailed list of error codes is available here.