Updates a user's count preference of a specific group channel.
The following table lists the parameters that this action supports.
Specifies the unique ID of a user.
Specifies the URL of a group channel.
The following table lists the properties of an HTTP request that this action supports.
Determines whether to only count the number of unread messages or unread mentioned messages in the specified group channel. Only the preferred unread item is counted and added to the total number count. Acceptable values are the following:
If successful, this action returns the user's count preference of the group channel in the response body.
In the case of an error, an error object is returned. A detailed list of error codes is available here.