TI-API: Python, Order change Failed: 500

Part Number: TI-API

Hi TI support,

I am in Backlog Sandbox environment testing order change function.

However, there seems to be some steps (confirm the order?) that needs to be completed in your end so that I can send request to change existing order.
*ORDER NUMBER: TEST20231205155531

Here is my Python code for order_change:

from TI_Backlog_API_V2 import TI_Backlog_Orders

class Backlog_Example_Script:

    def __init__(self, client_id, client_secret, server, ship_to):
        self.server = server
        self.client_id = client_id
        self.client_secret = client_secret
        self.ship_to = ship_to
        self.ordersAPI = TI_Backlog_Orders(client_id=client_id, client_secret=client_secret, server=server)

    def change_order(self, customer_name, customer_order_number, line_items):
        response = self.ordersAPI.change_order(
            customer_name=customer_name,
            customer_order_number=customer_order_number,
            ship_to=self.ship_to,
            line_items=line_items
        )

        if response.status_code == 200:
            print("Order changed successfully.")
            return response.json()
        else:
            print(f"Failed to change order: {response.status_code}, {response.text}")
            return None

# Usage example
if __name__ == "__main__":
    client_id = 'masked'  # Replace with your actual client ID
    client_secret = 'masked'  # Replace with your actual client secret
    server = 'https://transact-pre.ti.com'  # Replace with the actual server URL
    shipTo='masked',
    soldTo='masked',
    debug=True,
    customer_name = 'Test Customer'  # Replace with the actual customer name
    customer_order_number = 'masked'  # Replace with the actual customer order number

    # Example line item changes
    line_items = [
        {
            "customerLineItemNumber": 1,
            "lineItemChangeIndicator": "U",
            "tiPartNumber": "SN74S00N",
            "customerAnticipatedUnitPrice": 0.8,
            "customerCurrencyCode": "USD",
            "schedules": [
                {
                    "requestedQuantity": 12000,
                    "requestedDeliveryDate": "2026-06-15"
                }
            ]
        }
    ]

    backlog_script = Backlog_Example_Script(client_id, client_secret, server, shipTo)
    result = backlog_script.change_order(customer_name, customer_order_number, line_items)

    if result:
        print("Updated Order Information:", result)
    else:
        print("Order update could not be processed.")

Here is the error message for order_change:

WARNING: Unexpected HTTP status code 500.
Failed to change order: 500, {
  "orders" : [
    {
      "messages" : [
        {
          "code" : "TI-SOU-50000",
          "type" : "ERROR",
          "message" : "System error occurred. Execution ID: execution-914c2838-2af5-47bb-ad61-b4a5ae195185-2023.12.06 . Contact TI API Support https://api-portal.ti.com/support with the execution ID."
        }
      ]
    }
  ]
}
Order update could not be processed.

Thanks,

David