Added due time to build endpoint.

backend/src/Squidex.Domain.Apps.Entities/Contents/BulkUpdateResultItem.cs

@@ -12,7 +12,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
 {
     public sealed class BulkUpdateResultItem
     {
-        public DomainId ContentId { get; set; }
+        public DomainId? ContentId { get; set; }
 
         public Exception? Exception { get; set; }
     }

backend/src/Squidex/Areas/Api/Controllers/Contents/Models/BulkResultDto.cs

@@ -22,7 +22,7 @@ namespace Squidex.Areas.Api.Controllers.Contents.Models
         /// <summary>
         /// The id of the content that has been handled successfully or not.
         /// </summary>
-        public DomainId ContentId { get; set; }
+        public DomainId? ContentId { get; set; }
 
         public static BulkResultDto FromImportResult(BulkUpdateResultItem result, HttpContext httpContext)
         {