diff --git a/CHANGELOG.md b/CHANGELOG.md
index d9f666d5e..d22961c3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -103,7 +103,10 @@
       - **Improvement:** Add validation to Name field of model struct `Cluster`
       - **Feature:** New model struct `Audit`
       - **Feature:** Add Audit (type Audit) field to model struct `CreateOrUpdateClusterPayload`
-- `sqlserverflex`: 
+- `sqlserverflex`:
+  - [v1.16.1](services/sqlserverflex/CHANGELOG.md#v1161)
+    - **Improvement**: Improve http error handling
+    - `v3api`: **Improvement**: Improve http error handling
   - [v1.16.0](services/sqlserverflex/CHANGELOG.md#v1160)
     - **Breaking Change:** The `v3api` replaces the `v2api`.
       - The order of the parameters has changed in some cases. Region and the resource id has changed.
diff --git a/services/sqlserverflex/CHANGELOG.md b/services/sqlserverflex/CHANGELOG.md
index 501cced5b..bdfff88df 100644
--- a/services/sqlserverflex/CHANGELOG.md
+++ b/services/sqlserverflex/CHANGELOG.md
@@ -1,3 +1,7 @@
+## v1.16.1
+- **Improvement**: Improve http error handling
+- `v3api`: **Improvement**: Improve http error handling
+
 ## v1.16.0
 - **Breaking Change:** The `v3api` replaces the `v2api`.
   - The order of the parameters has changed in some cases. Region and the resource id has changed. 
diff --git a/services/sqlserverflex/VERSION b/services/sqlserverflex/VERSION
index 4d9d07e23..2171feba4 100644
--- a/services/sqlserverflex/VERSION
+++ b/services/sqlserverflex/VERSION
@@ -1 +1 @@
-v1.16.0
\ No newline at end of file
+v1.16.1
\ No newline at end of file
diff --git a/services/sqlserverflex/api_default.go b/services/sqlserverflex/api_default.go
index 6f1ba53f3..5075c5740 100644
--- a/services/sqlserverflex/api_default.go
+++ b/services/sqlserverflex/api_default.go
@@ -1495,6 +1495,17 @@ func (r CreateUserRequest) Execute() (*CreateUserResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 412 {
+			var v Error
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 422 {
 			var v ValidationError
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1506,6 +1517,17 @@ func (r CreateUserRequest) Execute() (*CreateUserResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -2054,6 +2076,28 @@ func (r DeleteUserRequest) Execute() error {
 			newErr.Model = v
 			return newErr
 		}
+		if localVarHTTPResponse.StatusCode == 412 {
+			var v Error
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return newErr
+		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -4517,6 +4561,17 @@ func (r ListRolesRequest) Execute() (*ListRolesResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -5522,6 +5577,17 @@ func (r ResetUserRequest) Execute() (*ResetUserResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 412 {
+			var v Error
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 422 {
 			var v ValidationError
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -5533,6 +5599,17 @@ func (r ResetUserRequest) Execute() (*ResetUserResponse, error) {
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
diff --git a/services/sqlserverflex/oas_commit b/services/sqlserverflex/oas_commit
index be073bf26..f4e71ced1 100644
--- a/services/sqlserverflex/oas_commit
+++ b/services/sqlserverflex/oas_commit
@@ -1 +1 @@
-72230b88b02a415757a997174c27da16db266be6
+beeb2da62f7e0fe249320b50f07e328653c67055
diff --git a/services/sqlserverflex/v3api/api_default.go b/services/sqlserverflex/v3api/api_default.go
index 02033fac6..c90524a0c 100644
--- a/services/sqlserverflex/v3api/api_default.go
+++ b/services/sqlserverflex/v3api/api_default.go
@@ -1068,6 +1068,17 @@ func (a *DefaultAPIService) CreateUserExecute(r ApiCreateUserRequest) (*CreateUs
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 412 {
+			var v Error
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 422 {
 			var v ValidationError
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1079,6 +1090,17 @@ func (a *DefaultAPIService) CreateUserExecute(r ApiCreateUserRequest) (*CreateUs
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -1589,6 +1611,28 @@ func (a *DefaultAPIService) DeleteUserExecute(r ApiDeleteUserRequest) error {
 			newErr.Model = v
 			return newErr
 		}
+		if localVarHTTPResponse.StatusCode == 412 {
+			var v Error
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return newErr
+		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -3936,6 +3980,17 @@ func (a *DefaultAPIService) ListRolesExecute(r ApiListRolesRequest) (*ListRolesR
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -4893,6 +4948,17 @@ func (a *DefaultAPIService) ResetUserExecute(r ApiResetUserRequest) (*ResetUserR
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 412 {
+			var v Error
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 422 {
 			var v ValidationError
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
@@ -4904,6 +4970,17 @@ func (a *DefaultAPIService) ResetUserExecute(r ApiResetUserRequest) (*ResetUserR
 			newErr.Model = v
 			return localVarReturnValue, newErr
 		}
+		if localVarHTTPResponse.StatusCode == 425 {
+			var v Error
+			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+			if err != nil {
+				newErr.ErrorMessage = err.Error()
+				return localVarReturnValue, newErr
+			}
+			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
+			newErr.Model = v
+			return localVarReturnValue, newErr
+		}
 		if localVarHTTPResponse.StatusCode == 500 {
 			var v Error
 			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))