diff --git a/src/Infrastructure/BotSharp.Abstraction/Functions/Models/FunctionParametersDef.cs b/src/Infrastructure/BotSharp.Abstraction/Functions/Models/FunctionParametersDef.cs
index a7e273d38..975a17d63 100644
--- a/src/Infrastructure/BotSharp.Abstraction/Functions/Models/FunctionParametersDef.cs
+++ b/src/Infrastructure/BotSharp.Abstraction/Functions/Models/FunctionParametersDef.cs
@@ -18,4 +18,9 @@ public class FunctionParametersDef
 
     [JsonPropertyName("required")]
     public List<string> Required {  get; set; } = new List<string>();
+
+    public FunctionParametersDef()
+    {
+        
+    }
 }
diff --git a/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs b/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs
index 7212ab254..daccc6a91 100644
--- a/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs
+++ b/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs
@@ -56,7 +56,7 @@ public async Task<Conversation> NewConversation(Conversation sess)
         var dbSettings = _services.GetRequiredService<BotSharpDatabaseSettings>();
         var conversationSettings = _services.GetRequiredService<ConversationSetting>();
         var user = db.Users.FirstOrDefault(x => x.ExternalId == _user.Id);
-        var foundUserId = user?.Id ?? _user.Id;
+        var foundUserId = user?.Id ?? string.Empty;
 
         var record = sess;
         record.Id = sess.Id.IfNullOrEmptyAs(Guid.NewGuid().ToString());
diff --git a/src/Infrastructure/BotSharp.OpenAPI/Controllers/AgentController.cs b/src/Infrastructure/BotSharp.OpenAPI/Controllers/AgentController.cs
index bd6a0c439..a4830d8d7 100644
--- a/src/Infrastructure/BotSharp.OpenAPI/Controllers/AgentController.cs
+++ b/src/Infrastructure/BotSharp.OpenAPI/Controllers/AgentController.cs
@@ -1,8 +1,6 @@
 using BotSharp.Abstraction.Agents.Enums;
-using BotSharp.Abstraction.Agents.Models;
 using BotSharp.Abstraction.ApiAdapters;
 using BotSharp.Abstraction.Routing;
-using BotSharp.Abstraction.Routing.Settings;
 using BotSharp.OpenAPI.ViewModels.Agents;
 
 namespace BotSharp.OpenAPI.Controllers;
diff --git a/src/Plugins/BotSharp.Plugin.MongoStorage/Collections/AgentCollection.cs b/src/Plugins/BotSharp.Plugin.MongoStorage/Collections/AgentCollection.cs
index eec7a5591..f6d368d33 100644
--- a/src/Plugins/BotSharp.Plugin.MongoStorage/Collections/AgentCollection.cs
+++ b/src/Plugins/BotSharp.Plugin.MongoStorage/Collections/AgentCollection.cs
@@ -1,5 +1,3 @@
-using BotSharp.Abstraction.Agents.Models;
-using BotSharp.Abstraction.Functions.Models;
 using BotSharp.Plugin.MongoStorage.Models;
 
 namespace BotSharp.Plugin.MongoStorage.Collections;
@@ -9,9 +7,9 @@ public class AgentCollection : MongoBase
     public string Name { get; set; }
     public string Description { get; set; }
     public string Instruction { get; set; }
-    public List<AgentTemplate> Templates { get; set; }
-    public List<FunctionDef> Functions { get; set; }
-    public List<AgentResponse> Responses { get; set; }
+    public List<AgentTemplateMongoElement> Templates { get; set; }
+    public List<FunctionDefMongoElement> Functions { get; set; }
+    public List<AgentResponseMongoElement> Responses { get; set; }
     public bool IsPublic { get; set; }
     public bool AllowRouting { get; set; }
     public bool Disabled { get; set; }
diff --git a/src/Plugins/BotSharp.Plugin.MongoStorage/Models/AgentResponseMongoElement.cs b/src/Plugins/BotSharp.Plugin.MongoStorage/Models/AgentResponseMongoElement.cs
new file mode 100644
index 000000000..ee556549f
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MongoStorage/Models/AgentResponseMongoElement.cs
@@ -0,0 +1,30 @@
+using BotSharp.Abstraction.Agents.Models;
+
+namespace BotSharp.Plugin.MongoStorage.Models;
+
+public class AgentResponseMongoElement
+{
+    public string Prefix { get; set; }
+    public string Intent { get; set; }
+    public string Content { get; set; }
+
+    public static AgentResponseMongoElement ToMongoElement(AgentResponse response)
+    {
+        return new AgentResponseMongoElement
+        {
+            Prefix = response.Prefix,
+            Intent = response.Intent,
+            Content = response.Content
+        };
+    }
+
+    public static AgentResponse ToDomainElement(AgentResponseMongoElement mongoResponse)
+    {
+        return new AgentResponse
+        {
+            Prefix = mongoResponse.Prefix,
+            Intent = mongoResponse.Intent,
+            Content = mongoResponse.Content
+        };
+    }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MongoStorage/Models/AgentTemplateMongoElement.cs b/src/Plugins/BotSharp.Plugin.MongoStorage/Models/AgentTemplateMongoElement.cs
new file mode 100644
index 000000000..719a11d90
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MongoStorage/Models/AgentTemplateMongoElement.cs
@@ -0,0 +1,27 @@
+using BotSharp.Abstraction.Agents.Models;
+
+namespace BotSharp.Plugin.MongoStorage.Models;
+
+public class AgentTemplateMongoElement
+{
+    public string Name { get; set; }
+    public string Content { get; set; }
+
+    public static AgentTemplateMongoElement ToMongoElement(AgentTemplate template)
+    {
+        return new AgentTemplateMongoElement
+        {
+            Name = template.Name,
+            Content = template.Content
+        };
+    }
+
+    public static AgentTemplate ToDomainElement(AgentTemplateMongoElement mongoTemplate)
+    {
+        return new AgentTemplate
+        {
+            Name = mongoTemplate.Name,
+            Content = mongoTemplate.Content
+        };
+    }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MongoStorage/Models/FunctionDefMongoElement.cs b/src/Plugins/BotSharp.Plugin.MongoStorage/Models/FunctionDefMongoElement.cs
new file mode 100644
index 000000000..d99435771
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MongoStorage/Models/FunctionDefMongoElement.cs
@@ -0,0 +1,58 @@
+using BotSharp.Abstraction.Functions.Models;
+using System.Text.Json;
+
+namespace BotSharp.Plugin.MongoStorage.Models;
+
+public class FunctionDefMongoElement
+{
+    public string Name { get; set; }
+    public string Description { get; set; }
+    public FunctionParametersDefMongoElement Parameters { get; set; } = new FunctionParametersDefMongoElement();
+
+    public FunctionDefMongoElement()
+    {
+        
+    }
+
+    public static FunctionDefMongoElement ToMongoElement(FunctionDef function)
+    {
+        return new FunctionDefMongoElement
+        {
+            Name = function.Name,
+            Description = function.Description,
+            Parameters = new FunctionParametersDefMongoElement
+            {
+                Type = function.Parameters.Type,
+                Properties = JsonSerializer.Serialize(function.Parameters.Properties),
+                Required = function.Parameters.Required,
+            }
+        };
+    }
+
+    public static FunctionDef ToDomainElement(FunctionDefMongoElement mongoFunction)
+    {
+        return new FunctionDef
+        {
+            Name = mongoFunction.Name,
+            Description = mongoFunction.Description,
+            Parameters = new FunctionParametersDef
+            {
+                Type = mongoFunction.Parameters.Type,
+                Properties = JsonSerializer.Deserialize<JsonDocument>(mongoFunction.Parameters.Properties),
+                Required = mongoFunction.Parameters.Required,
+            }
+        };
+    }
+}
+
+public class FunctionParametersDefMongoElement
+{
+    public string Type { get; set; }
+    public string Properties { get; set; }
+    public List<string> Required { get; set; } = new List<string>();
+
+    public FunctionParametersDefMongoElement()
+    {
+        
+    }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.cs b/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.cs
index d360429f1..ef7afb03e 100644
--- a/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.cs
+++ b/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.cs
@@ -41,9 +41,15 @@ public IQueryable<Agent> Agents
                 Name = x.Name,
                 Description = x.Description,
                 Instruction = x.Instruction,
-                Templates = x.Templates,
-                Functions = x.Functions,
-                Responses = x.Responses,
+                Templates = x.Templates?
+                             .Select(t => AgentTemplateMongoElement.ToDomainElement(t))?
+                             .ToList() ?? new List<AgentTemplate>(),
+                Functions = x.Functions?
+                             .Select(f => FunctionDefMongoElement.ToDomainElement(f))?
+                             .ToList() ?? new List<FunctionDef>(),
+                Responses = x.Responses?
+                             .Select(r => AgentResponseMongoElement.ToDomainElement(r))?
+                             .ToList() ?? new List<AgentResponse>(),
                 IsPublic = x.IsPublic,
                 Disabled = x.Disabled,
                 AllowRouting = x.AllowRouting,
@@ -183,7 +189,7 @@ public int Transaction<TTableInterface>(Action action)
                 {
                     Id = string.IsNullOrEmpty(x.Id) ? Guid.NewGuid() : new Guid(x.Id),
                     AgentId = Guid.Parse(x.AgentId),
-                    UserId = Guid.Parse(x.UserId),
+                    UserId = !string.IsNullOrEmpty(x.UserId) && Guid.TryParse(x.UserId, out var _) ? Guid.Parse(x.UserId) : Guid.Empty,
                     Title = x.Title,
                     States = x.States?.ToKeyValueList() ?? new List<StateKeyValue>(),
                     CreatedTime = x.CreatedTime,
@@ -211,9 +217,15 @@ public int Transaction<TTableInterface>(Action action)
                     Name = x.Name,
                     Description = x.Description,
                     Instruction = x.Instruction,
-                    Templates = x.Templates,
-                    Functions = x.Functions,
-                    Responses = x.Responses,
+                    Templates = x.Templates?
+                                 .Select(t => AgentTemplateMongoElement.ToMongoElement(t))?
+                                 .ToList() ?? new List<AgentTemplateMongoElement>(),
+                    Functions = x.Functions?
+                                 .Select(f => FunctionDefMongoElement.ToMongoElement(f))?
+                                 .ToList() ?? new List<FunctionDefMongoElement>(),
+                    Responses = x.Responses?
+                                 .Select(r => AgentResponseMongoElement.ToMongoElement(r))?
+                                 .ToList() ?? new List<AgentResponseMongoElement>(),
                     IsPublic = x.IsPublic,
                     AllowRouting = x.AllowRouting,
                     Disabled = x.Disabled,
@@ -281,7 +293,7 @@ public int Transaction<TTableInterface>(Action action)
                 {
                     Id = string.IsNullOrEmpty(x.Id) ? Guid.NewGuid() : new Guid(x.Id),
                     AgentId = Guid.Parse(x.AgentId),
-                    UserId = Guid.Parse(x.UserId),
+                    UserId = !string.IsNullOrEmpty(x.UserId) && Guid.TryParse(x.UserId, out var _) ? Guid.Parse(x.UserId) : Guid.Empty,
                     CreatedTime = x.CreatedTime,
                     UpdatedTime = x.UpdatedTime
                 }).ToList();
@@ -446,9 +458,10 @@ private void UpdateAgentFunctions(string agentId, List<FunctionDef> functions)
     {
         if (functions.IsNullOrEmpty()) return;
 
+        var functionsToUpdate = functions.Select(f => FunctionDefMongoElement.ToMongoElement(f)).ToList();
         var filter = Builders<AgentCollection>.Filter.Eq(x => x.Id, Guid.Parse(agentId));
         var update = Builders<AgentCollection>.Update
-            .Set(x => x.Functions, functions)
+            .Set(x => x.Functions, functionsToUpdate)
             .Set(x => x.UpdatedTime, DateTime.UtcNow);
 
         _dc.Agents.UpdateOne(filter, update);
@@ -458,9 +471,10 @@ private void UpdateAgentTemplates(string agentId, List<AgentTemplate> templates)
     {
         if (templates.IsNullOrEmpty()) return;
 
+        var templatesToUpdate = templates.Select(t => AgentTemplateMongoElement.ToMongoElement(t)).ToList();
         var filter = Builders<AgentCollection>.Filter.Eq(x => x.Id, Guid.Parse(agentId));
         var update = Builders<AgentCollection>.Update
-            .Set(x => x.Templates, templates)
+            .Set(x => x.Templates, templatesToUpdate)
             .Set(x => x.UpdatedTime, DateTime.UtcNow);
 
         _dc.Agents.UpdateOne(filter, update);
@@ -470,9 +484,10 @@ private void UpdateAgentResponses(string agentId, List<AgentResponse> responses)
     {
         if (responses.IsNullOrEmpty()) return;
 
+        var responsesToUpdate = responses.Select(r => AgentResponseMongoElement.ToMongoElement(r)).ToList();
         var filter = Builders<AgentCollection>.Filter.Eq(x => x.Id, Guid.Parse(agentId));
         var update = Builders<AgentCollection>.Update
-            .Set(x => x.Responses, responses)
+            .Set(x => x.Responses, responsesToUpdate)
             .Set(x => x.UpdatedTime, DateTime.UtcNow);
 
         _dc.Agents.UpdateOne(filter, update);
@@ -487,11 +502,11 @@ private void UpdateAgentAllFields(Agent agent)
             .Set(x => x.Disabled, agent.Disabled)
             .Set(x => x.AllowRouting, agent.AllowRouting)
             .Set(x => x.Profiles, agent.Profiles)
-            .Set(x => x.RoutingRules, agent.RoutingRules.Select(x => RoutingRuleMongoElement.ToMongoElement(x)).ToList())
+            .Set(x => x.RoutingRules, agent.RoutingRules.Select(r => RoutingRuleMongoElement.ToMongoElement(r)).ToList())
             .Set(x => x.Instruction, agent.Instruction)
-            .Set(x => x.Templates, agent.Templates)
-            .Set(x => x.Functions, agent.Functions)
-            .Set(x => x.Responses, agent.Responses)
+            .Set(x => x.Templates, agent.Templates.Select(t => AgentTemplateMongoElement.ToMongoElement(t)).ToList())
+            .Set(x => x.Functions, agent.Functions.Select(f => FunctionDefMongoElement.ToMongoElement(f)).ToList())
+            .Set(x => x.Responses, agent.Responses.Select(r => AgentResponseMongoElement.ToMongoElement(r)).ToList())
             .Set(x => x.IsPublic, agent.IsPublic)
             .Set(x => x.UpdatedTime, DateTime.UtcNow);
 
@@ -535,7 +550,7 @@ public void CreateNewConversation(Conversation conversation)
         {
             Id = !string.IsNullOrEmpty(conversation.Id) ? Guid.Parse(conversation.Id) : Guid.NewGuid(),
             AgentId = Guid.Parse(conversation.AgentId),
-            UserId = Guid.Parse(conversation.UserId),
+            UserId = !string.IsNullOrEmpty(conversation.UserId) && Guid.TryParse(conversation.UserId, out var _) ? Guid.Parse(conversation.UserId) : Guid.Empty,
             Title = conversation.Title,
             States = conversation.States?.ToKeyValueList() ?? new List<StateKeyValue>(),
             CreatedTime = DateTime.UtcNow,
@@ -637,7 +652,7 @@ public Conversation GetConversation(string conversationId)
     public List<Conversation> GetConversations(string userId)
     {
         var records = new List<Conversation>();
-        if (string.IsNullOrEmpty(userId)) return records;
+        if (string.IsNullOrEmpty(userId) || !Guid.TryParse(userId, out var _)) return records;
 
         var filterByUserId = Builders<ConversationCollection>.Filter.Eq(x => x.UserId, Guid.Parse(userId));
         var conversations = _dc.Conversations.Find(filterByUserId).ToList();