Unable to tag a ticket using AttachTagToTicket API

Hey Team,

Thanks in advance,
 

I'm attempting to link a tag to the ticket generated through the create ticket API, utilizing the Attach Tag to Ticket API. However, whenever I make an attempt to attach the tag, I receive an error indicating that the tag isn't supported for this ticket type. I've tried attaching the tag across all three categories (Ticket Types: "Customer," "Back-office," "Tracker").

Is there something I'm overlooking in my approach, or could there possibly be an issue with the Tag API itself?

{
    "type": "error.list",
    "request_id": xxxxxxxxxxxxx,
    "errors": [
        {
        "code": "unsupported",
        "message": "Tag not supported for this ticket type"
        }
     ]
}