400 Error Adding order via API

Receiving the below error when adding an order. Any help would be appriciated.

    "error_messages": {
        "order": {
            "line_items": [
                "can't be blank"

Json being sent below, I’ve used dummy values but actual request used real values:

        "address1":"Address 1",
        "address2":"Address 2",
        "zip":"AB3 3CD"
    "line_items_attributes": [

Hi @timatcg

Is this happening for all orders?

Can you send the full request including IDs to api-support@veeqo.com and I will pick it up from there.