diff --git a/STX.EFxceptions.Cosmos.Base.Tests.Unit/Services/Foundations/CosmosEfxceptionServiceTests.Exceptions.cs b/STX.EFxceptions.Cosmos.Base.Tests.Unit/Services/Foundations/CosmosEfxceptionServiceTests.Exceptions.cs
index 6bdd8dd..4b25379 100644
--- a/STX.EFxceptions.Cosmos.Base.Tests.Unit/Services/Foundations/CosmosEfxceptionServiceTests.Exceptions.cs
+++ b/STX.EFxceptions.Cosmos.Base.Tests.Unit/Services/Foundations/CosmosEfxceptionServiceTests.Exceptions.cs
@@ -4,6 +4,7 @@
 
 using System.Net;
 using Microsoft.Azure.Cosmos;
+using Microsoft.EntityFrameworkCore;
 using STX.EFxceptions.Cosmos.Base.Models.Exceptions;
 using Xunit;
 
@@ -18,13 +19,17 @@ public void ShouldThrowCosmosExceptionIfStatusCodeIsNotRecognized()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.Unused;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+                message: cosmosException.Message,
+                innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
-            Assert.Throws<CosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+            Assert.Throws<DbUpdateException>(() =>
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -34,13 +39,17 @@ public void ShouldThrowAuthenticationFailedCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.Unauthorized;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<AuthenticationFailedCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -50,13 +59,17 @@ public void ShouldThrowAuthorizationFailedCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.Forbidden;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<AuthorizationFailedCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -66,13 +79,17 @@ public void ShouldThrowResourceNotFoundCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.NotFound;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<ResourceNotFoundCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -82,13 +99,17 @@ public void ShouldThrowRequestTimeoutCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.RequestTimeout;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<RequestTimeoutCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -98,13 +119,17 @@ public void ShouldThrowPreconditionFailedCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.PreconditionFailed;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<PreconditionFailedCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -114,13 +139,17 @@ public void ShouldThrowPayloadTooLargeCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.RequestEntityTooLarge;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<PayloadTooLargeCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -130,13 +159,17 @@ public void ShouldThrowResourceLockedCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.Locked;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<ResourceLockedCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -146,13 +179,17 @@ public void ShouldThrowDependencyFailedCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.FailedDependency;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<DependencyFailedCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -162,13 +199,17 @@ public void ShouldThrowTooManyRequestsCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.TooManyRequests;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<TooManyRequestsCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
 
         [Fact]
@@ -178,15 +219,19 @@ public void ShouldThrowInternalServerCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.InternalServerError;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<InternalServerCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
-        
+
         [Fact]
         public void ShouldThrowServiceUnavailableCosmosException()
         {
@@ -194,13 +239,17 @@ public void ShouldThrowServiceUnavailableCosmosException()
             HttpStatusCode cosmosStatusCode = HttpStatusCode.ServiceUnavailable;
             CosmosException cosmosException = CreateCosmosException(cosmosStatusCode);
 
+            var dbUpdateException = new DbUpdateException(
+               message: cosmosException.Message,
+               innerException: cosmosException);
+
             this.cosmosErrorBrokerMock.Setup(broker =>
                 broker.GetErrorCode(cosmosException))
                     .Returns((int)cosmosStatusCode);
 
             // when . then
             Assert.Throws<ServiceUnavailableCosmosException>(() =>
-                this.cosmosEFxceptionService.ThrowMeaningfulException(cosmosException));
+                this.cosmosEFxceptionService.ThrowMeaningfulException(dbUpdateException));
         }
     }
 }
diff --git a/STX.EFxceptions.Cosmos.Base/STX.EFxceptions.Cosmos.Base.csproj b/STX.EFxceptions.Cosmos.Base/STX.EFxceptions.Cosmos.Base.csproj
index ad5f98f..bb0ba98 100644
--- a/STX.EFxceptions.Cosmos.Base/STX.EFxceptions.Cosmos.Base.csproj
+++ b/STX.EFxceptions.Cosmos.Base/STX.EFxceptions.Cosmos.Base.csproj
@@ -46,7 +46,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Azure.Cosmos" Version="3.37.1" />
-		<PackageReference Include="STX.EFxceptions.Interfaces" Version="0.1.0" />
+		<PackageReference Include="STX.EFxceptions.Interfaces" Version="0.1.1" />
 	</ItemGroup>
 
 </Project>
diff --git a/STX.EFxceptions.Cosmos.Base/Services/Foundations/CosmosEFxceptionService .cs b/STX.EFxceptions.Cosmos.Base/Services/Foundations/CosmosEFxceptionService .cs
index 0a9ff9e..8d59c70 100644
--- a/STX.EFxceptions.Cosmos.Base/Services/Foundations/CosmosEFxceptionService .cs	
+++ b/STX.EFxceptions.Cosmos.Base/Services/Foundations/CosmosEFxceptionService .cs	
@@ -2,8 +2,9 @@
 // Copyright(c) The Standard Organization: A coalition of the Good-Hearted Engineers
 // ----------------------------------------------------------------------------------
 
+using System;
 using Microsoft.Azure.Cosmos;
-using STX.EFxceptions.Cosmos.Base.Brokers.DbErrorBroker;
+using Microsoft.EntityFrameworkCore;
 using STX.EFxceptions.Interfaces.Brokers.DbErrorBroker;
 
 namespace STX.EFxceptions.Cosmos.Base.Services.Foundations
@@ -15,11 +16,15 @@ public partial class CosmosEFxceptionService : ICosmosEFxceptionService
         public CosmosEFxceptionService(IDbErrorBroker<CosmosException> cosmosErrorBroker) =>
             this.cosmosErrorBroker = cosmosErrorBroker;
 
-        public void ThrowMeaningfulException(CosmosException cosmosException)
+        public void ThrowMeaningfulException(DbUpdateException dbUpdateException)
         {
+            ValidateInnerException(dbUpdateException);
+            CosmosException cosmosException = GetCosmosException(dbUpdateException.InnerException);
             int cosmosErrorCode = this.cosmosErrorBroker.GetErrorCode(cosmosException);
             ConvertAndThrowMeaningfulException(cosmosErrorCode, cosmosException.Message);
-            throw cosmosException;
+            throw dbUpdateException;
         }
+
+        private CosmosException GetCosmosException(Exception exception) => (CosmosException)exception;
     }
 }
diff --git a/STX.EFxceptions.Cosmos.Base/Services/Foundations/CosmosEFxceptionService.Validations.cs b/STX.EFxceptions.Cosmos.Base/Services/Foundations/CosmosEFxceptionService.Validations.cs
new file mode 100644
index 0000000..3ccdb77
--- /dev/null
+++ b/STX.EFxceptions.Cosmos.Base/Services/Foundations/CosmosEFxceptionService.Validations.cs
@@ -0,0 +1,19 @@
+// ----------------------------------------------------------------------------------
+// Copyright(c) The Standard Organization: A coalition of the Good-Hearted Engineers
+// ----------------------------------------------------------------------------------
+
+using Microsoft.EntityFrameworkCore;
+
+namespace STX.EFxceptions.Cosmos.Base.Services.Foundations
+{
+    public partial class CosmosEFxceptionService
+    {
+        private void ValidateInnerException(DbUpdateException dbUpdateException)
+        {
+            if (dbUpdateException.InnerException is null)
+            {
+                throw dbUpdateException;
+            }
+        }
+    }
+}
diff --git a/STX.EFxceptions.Cosmos.Base/Services/Foundations/ICosmosEFxceptionService.cs b/STX.EFxceptions.Cosmos.Base/Services/Foundations/ICosmosEFxceptionService.cs
index 8748623..84d3349 100644
--- a/STX.EFxceptions.Cosmos.Base/Services/Foundations/ICosmosEFxceptionService.cs
+++ b/STX.EFxceptions.Cosmos.Base/Services/Foundations/ICosmosEFxceptionService.cs
@@ -2,11 +2,10 @@
 // Copyright(c) The Standard Organization: A coalition of the Good-Hearted Engineers
 // ----------------------------------------------------------------------------------
 
-using Microsoft.Azure.Cosmos;
 using STX.EFxceptions.Interfaces.Services.EFxceptions;
 
 namespace STX.EFxceptions.Cosmos.Base.Services.Foundations
 {
-    public interface ICosmosEFxceptionService : IEFxceptionService<CosmosException>
+    public interface ICosmosEFxceptionService : IEFxceptionService
     { }
 }
diff --git a/STX.EFxceptions.Cosmos/EFxceptionsContext.cs b/STX.EFxceptions.Cosmos/EFxceptionsContext.cs
index 690a1a5..526de43 100644
--- a/STX.EFxceptions.Cosmos/EFxceptionsContext.cs
+++ b/STX.EFxceptions.Cosmos/EFxceptionsContext.cs
@@ -25,7 +25,7 @@ protected EFxceptionsContext()
         protected override IDbErrorBroker<CosmosException> CreateErrorBroker() =>
             new CosmosErrorBroker();
 
-        protected override IEFxceptionService<CosmosException> CreateEFxceptionService(
+        protected override IEFxceptionService CreateEFxceptionService(
             IDbErrorBroker<CosmosException> errorBroker)
         {
             return new CosmosEFxceptionService(errorBroker);
diff --git a/STX.EFxceptions.Cosmos/STX.EFxceptions.Cosmos.csproj b/STX.EFxceptions.Cosmos/STX.EFxceptions.Cosmos.csproj
index e5ffe55..6f789b0 100644
--- a/STX.EFxceptions.Cosmos/STX.EFxceptions.Cosmos.csproj
+++ b/STX.EFxceptions.Cosmos/STX.EFxceptions.Cosmos.csproj
@@ -46,7 +46,7 @@
 
 	<ItemGroup>
 	  <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.37.1" />
-	  <PackageReference Include="STX.EFxceptions.Core" Version="0.1.0" />
+	  <PackageReference Include="STX.EFxceptions.Core" Version="0.1.1" />
 	</ItemGroup>
 
 	<ItemGroup>
diff --git a/STX.EFxceptions.Identity.Cosmos/EFxceptionsIdentityContext.cs b/STX.EFxceptions.Identity.Cosmos/EFxceptionsIdentityContext.cs
index b26f947..fd771b8 100644
--- a/STX.EFxceptions.Identity.Cosmos/EFxceptionsIdentityContext.cs
+++ b/STX.EFxceptions.Identity.Cosmos/EFxceptionsIdentityContext.cs
@@ -30,9 +30,11 @@ protected EFxceptionsIdentityContext() : base()
         protected override IDbErrorBroker<CosmosException> CreateErrorBroker() =>
             new CosmosErrorBroker();
 
-        protected override IEFxceptionService<CosmosException> CreateEFxceptionService(
-            IDbErrorBroker<CosmosException> errorBroker) =>
-                new CosmosEFxceptionService(errorBroker);
+        protected override IEFxceptionService CreateEFxceptionService(
+            IDbErrorBroker<CosmosException> errorBroker)
+        {
+            return new CosmosEFxceptionService(errorBroker);
+        }
     }
 
     public class EFxceptionsIdentityContext<
@@ -57,8 +59,10 @@ protected EFxceptionsIdentityContext() : base()
         protected override IDbErrorBroker<CosmosException> CreateErrorBroker() =>
             new CosmosErrorBroker();
 
-        protected override IEFxceptionService<CosmosException> CreateEFxceptionService(
-            IDbErrorBroker<CosmosException> errorBroker) =>
-                new CosmosEFxceptionService(errorBroker);
+        protected override IEFxceptionService CreateEFxceptionService(
+            IDbErrorBroker<CosmosException> errorBroker)
+        {
+            return new CosmosEFxceptionService(errorBroker);
+        }
     }
 }
diff --git a/STX.EFxceptions.Identity.Cosmos/STX.EFxceptions.Identity.Cosmos.csproj b/STX.EFxceptions.Identity.Cosmos/STX.EFxceptions.Identity.Cosmos.csproj
index 4c2f2f2..bb1064e 100644
--- a/STX.EFxceptions.Identity.Cosmos/STX.EFxceptions.Identity.Cosmos.csproj
+++ b/STX.EFxceptions.Identity.Cosmos/STX.EFxceptions.Identity.Cosmos.csproj
@@ -47,7 +47,7 @@
 	<ItemGroup>
 	  <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="8.0.1" />
 	  <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.37.1" />
-	  <PackageReference Include="STX.EFxceptions.Identity.Core" Version="0.1.0" />
+	  <PackageReference Include="STX.EFxceptions.Identity.Core" Version="0.1.1" />
 	</ItemGroup>
 
 	<ItemGroup>