Document Intelligence Model Internal Server Error

Question

We are using AP Automation solution and facing issues reading an invoice that is 476 pages and 918 KB.

Azure supports 2000 pages, I also tested on another Document Intelligence instance and had same issue. I then split to first two pages and it processed so PDF should be ok.

Have used both Power Automate action and Postman.

The response only has after about 9 minutes:

{

    "status": "failed",

    "createdDateTime": "2025-02-20T13:02:26Z",

    "lastUpdatedDateTime": "2025-02-20T13:02:26Z",

    "error": {

        "code": "InternalServerError",

        "message": "An unexpected error occurred.",

        "details": [

            {

                "code": "InternalServerError",

                "message": "An unexpected error occurred."

            }

        ]

    }

}