Please refer to the corrected CURL below along with success response. REQUEST: curl --location 'https://staging-express.delhivery.com/api/cmu/create.json' \ --header 'Authorization: Token 7c31e6de2aabcd771507740689056beea840cd06' \ --header 'Content-Type: application/json' \ --header 'Cookie: __cf_bm=HAeBKVCm5ye4eWmEoGmdUyOO4Pbjv8A3C.b.BsncLvw-1764827651-1.0.1.1-f9TFGCHKwzuQRG9ForjKEJ_Cwim1parMdrRPNqKtvpB8NnrslqPhtYvPLZb2ugMaVRQ1RS6NJDHVFiPlmjcJIWY7nCOYIQkUp6mabZZKRYQ; sessionid=48icbyloo0kcwlu6cl35rf9d608srfgh' \ --data-raw 'format=json&data={ "shipments": [ { "waybill": "", "order": "TESTORDER1764223767", "products_desc": "Blue Cotton Shirt", "cod_amount": 0, "payment_mode": "Prepaid", "total_amount": 799, "add": "Plot No 5, Sector 18", "city": "Hyderabad", "state": "Telangana", "country": "India", "phone": "9726357605", "email": "amit.kumar@example.com", "pin": "500025", "name": "Amit Kumar", "weight": 0.5, "pieces": 1, "client": "GBXPRESSSURFACE-B2C", "order_date": "2025-12-03 06:09:27", "product_name": "Blue Cotton Shirt", "seller_add": "Warehouse Block A, Shihor", "seller_name": "Jarawala Warehouse", "seller_inv": "INV-1764223767", "seller_phone": "9726357605", "seller_pincode": "364240", "return_add": "Warehouse Block A, Shihor", "return_city": "Shihor", "return_state": "Gujarat", "return_pin": "364240" } ], "pickup_location": { "name": "GBXPRESS SURFACE" } }' RESPONSE: { "cash_pickups_count": 0.0, "package_count": 1, "upload_wbn": "UPL9037019668890273333", "replacement_count": 0, "pickups_count": 0, "packages": [ { "status": "Success", "client": "GBXPRESSSURFACE-B2C", "sort_code": null, "remarks": [ "" ], "waybill": "84898210000011", "cod_amount": 0.0, "payment": "Pre-paid", "serviceable": false, "refnum": "TESTORDER1764223767" } ], "cash_pickups": 0.0, "cod_count": 0, "success": true, "prepaid_count": 1, "cod_amount": 0.0 } -> I will suggest reffering the API document mentioned below having all the API details and use the CURL proeprly as mentioned in this document: