c# - 亚马逊广告 api v2 createCampaigns 失败

Question

使用亚马逊的广告 API CreateCampaigns 时出错：{"code":"422","details":"服务器理解您的请求但无法处理一个或多个参数。","re​​questId":"KJPAT6WACV2V4GVXV0A0"}

List<Model.CreatePortfoliosRequestModel> createPortfoliosRequestModels = new List<Model.CreatePortfoliosRequestModel>();
for (int i = 0; i < 10; i++)
{
    Model.CreatePortfoliosRequestModel createPortfoliosRequestModel = new Model.CreatePortfoliosRequestModel();
    createPortfoliosRequestModel.Name = $"My Portfolio One15{i}1s1asdsfd";
    createPortfoliosRequestModel.State = Enum.StateEnum.Enabled;
    createPortfoliosRequestModel.Budget = new Model.BudgetModel() { Amount = 102 + i, StartDate = DateTime.Now.AddDays(10 + i), EndDate = DateTime.Now.AddDays(100 + i), Policy = "dateRange" };
    createPortfoliosRequestModels.Add(createPortfoliosRequestModel);
}
var createPortfoliosResponseModels = portfolioService.CreatePortfoliosAsync(createPortfoliosRequestModels).Result;

{"code":"422","details":"服务器理解您的请求但无法处理一个或多个参数。","re​​questId":"KJPAT6WACV2V4GVXV0A0"}