Checkout Page URL throws 400 error Page not found

Questions
1

I created a checkout API via a Curl request in php and it was successful but my issue is that the Checkout Page Url throws error 400 Page not found

Here are my Parameters

'{
    "idempotency_key": "86ae1696-b1e3-4328-af6d-f1e04d947ad61",
    "redirect_url": "https:/mysite.com",
    "order": {
      "idempotency_key": "12ae1696-z1e3-4328-af6d-f1e04d947gd41",
      "order": {
       "location_id": "My Location Id",
        "customer_id": "My customer Id",
        "line_items": [
          {
            "name": "Printed T Shirt",
            "quantity": "2",
            "base_price_money": {
              "amount": 1500,
              "currency": "USD"
            }
          },
          {
            "name": "Slim Jeans",
            "quantity": "1",
            "base_price_money": {
              "amount": 2500,
              "currency": "USD"
            }
          },
          {
            "name": "Woven Sweater",
            "quantity": "3",
            "base_price_money": {
              "amount": 3500,
              "currency": "USD"
            }
          }
        ]
      }
    },
    "ask_for_shipping_address": true,
    "merchant_support_email": "[email protected]",
    "pre_populate_buyer_email": "[email protected]",
    "pre_populate_shipping_address": {
      "address_line_1": "1455 Market St.",
      "address_line_2": "Suite 600",
      "locality": "San Francisco",
      "administrative_district_level_1": "CA",
      "postal_code": "94103",
      "country": "US",
      "first_name": "Jane",
      "last_name": "Doe"
    }
  }'
    }
  }'

Here is the Checkout Page Url response which triggers Whoops Error 400 Page not found

https://connect.squareupsandbox.com/v2/checkout?c=CBASEPAJrYwKqXiGQYtX8ZdPkG4\u0026l=L9MWXVMAQBCGG

2

:wave: With the Checkout API a 404 means that the checkout link is paid for. :slightly_smiling_face: