Error cases

Reward external_id does not exist (404)

{
    "status": 404,
    "errors": [
        {
            "error_key": "id",
            "error": "wrong_value",
            "error_description": "Record not found for id my_test_reward."
        }
    ]
}

Malformatted value - ex: boolean as string (400)

Generic error for all fields and custom fields values types

{
    "status": 400,
    "errors": [
        {
            "error_key": "name",
            "error": "wrong_type",
            "error_description": "This value should be of type string."
        }
    ]
}

{
    "error_key": "",
    "error": "wrong_field_type",
    "error_description": "something went wrong"
}

Edit non-existing or non-editable field (400)

Wording will mention field does not exist for the PATCH method

{
    "status": 400,
    "errors": [
        {
            "error_key": "external_id",
            "error": "unknown_field",
            "error_description": "The field \"external_id\" does not exist."
        }
    ]
}