Cannot create InventoryLocation and cannot get Inventory Locations on SANDBOX

[la-866285]

Endpoint: https://api.sandbox.ebay.com/sell/inventory/v1/location/sp6lvfHNxLN70HokfOK6

Method: POST

Body:

{
  "location": {
    "address": {
      "country": "US"
    }
  },
  "name": "Test1",
  "locationTypes": [
    "STORE"
  ],
  "phone": "+1 800 444 4444"
}​

Response:

{
    "errors": [
        {
            "errorId": 25802,
            "domain": "API_INVENTORY",
            "category": "REQUEST",
            "message": "Input error."
        }
    ]
}

Endpoint: https://api.sandbox.ebay.com/sell/inventory/v1/location

Method: GET

Response:

{
    "errors": [
        {
            "errorId": 25802,
            "domain": "API_INVENTORY",
            "category": "REQUEST",
            "message": "Input error."
        }
    ]
}

[vandelaybreaks]

same issue here - but also on PROD.