create an order using Order API and Postman returns 500

[imbenjogadia]

Hi Everyone, I created a product offering, specification and everything that relates to product offerings. But when I try to order the product offering that I newly publish using Order API /api/sn_csm_order_mgmt/order, I am recieving a 500 Internal Server Error. What is wrong with my request, is there something wrong with the product offering that I newly created?

This is the body of my post request.

{
"account": "c480021553ab70101aaeddeeff7b120f",
"contact":"96d0461553ab70101aaeddeeff7b120b",
"order_currency": "USD",
"comments": "sinble product",
"short_description": "testing order of the new product that i added",
"order_line_items": [
{
    "account": "c480021553ab70101aaeddeeff7b120f",
    "action": "add",
    "contact": "96d0461553ab70101aaeddeeff7b120b",
    "product_offering": "7aeddd2297040210d7feb6fce053aff5",
    "quantity": "1",
    "shipping_city": "Santa Clara",
    "shipping_country": "USA",
    "shipping_state": "CA",
    "shipping_street": "222 Star St",
    "shipping_zip": "94560",
    "state": "draft",
    "status": "new",
    "unit_of_measurement": "cb2795d553020110286eddeeff7b12ff",
    "unit_price": "2000"
}
]
}

and the result that I am recieving is this. 

{
    "error": {
        "message": "Malformed request.",
        "detail": "Invalid reference or missing access permission: unit_of_measurement = cb2795d553020110286eddeeff7b12ff."
    },
    "status": "failure"
}

Can you please help me?

Thank you