diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7d0a8e503..1252b80cab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Release v1.38.27 (2021-04-27)
+===
+
+### Service Client Updates
+* `service/auditmanager`: Updates service API and documentation
+
 Release v1.38.26 (2021-04-26)
 ===
 
diff --git a/aws/endpoints/defaults.go b/aws/endpoints/defaults.go
index cce4f16a35..257812d9ee 100644
--- a/aws/endpoints/defaults.go
+++ b/aws/endpoints/defaults.go
@@ -7984,7 +7984,8 @@ var awscnPartition = partition{
 				Protocols: []string{"https"},
 			},
 			Endpoints: endpoints{
-				"cn-north-1": endpoint{},
+				"cn-north-1":     endpoint{},
+				"cn-northwest-1": endpoint{},
 			},
 		},
 		"runtime.sagemaker": service{
diff --git a/aws/version.go b/aws/version.go
index a203daebbf..96b5a86d9a 100644
--- a/aws/version.go
+++ b/aws/version.go
@@ -5,4 +5,4 @@ package aws
 const SDKName = "aws-sdk-go"
 
 // SDKVersion is the version of this SDK
-const SDKVersion = "1.38.26"
+const SDKVersion = "1.38.27"
diff --git a/models/apis/auditmanager/2017-07-25/api-2.json b/models/apis/auditmanager/2017-07-25/api-2.json
index 5e3f51fd96..1b729f041d 100644
--- a/models/apis/auditmanager/2017-07-25/api-2.json
+++ b/models/apis/auditmanager/2017-07-25/api-2.json
@@ -989,7 +989,7 @@
       "type":"string",
       "max":300,
       "min":1,
-      "pattern":"^[\\w\\W\\s\\S]*$"
+      "pattern":"^[^\\\\]*$"
     },
     "AssessmentReport":{
       "type":"structure",
@@ -1356,7 +1356,7 @@
       "type":"string",
       "max":300,
       "min":1,
-      "pattern":"^[\\w\\W\\s\\S]*$"
+      "pattern":"^[^\\\\]*$"
     },
     "ControlResponse":{
       "type":"string",
@@ -1866,7 +1866,7 @@
       "type":"string",
       "max":300,
       "min":1,
-      "pattern":"^[\\w\\W\\s\\S]*$"
+      "pattern":"^[^\\\\]*$"
     },
     "FrameworkType":{
       "type":"string",
@@ -2866,7 +2866,7 @@
     "UpdateAssessmentFrameworkControlSet":{
       "type":"structure",
       "members":{
-        "id":{"shape":"UUID"},
+        "id":{"shape":"ControlSetName"},
         "name":{"shape":"ControlSetName"},
         "controls":{"shape":"CreateAssessmentFrameworkControls"}
       }
diff --git a/models/apis/auditmanager/2017-07-25/docs-2.json b/models/apis/auditmanager/2017-07-25/docs-2.json
index d8dea64e5a..01280852a2 100644
--- a/models/apis/auditmanager/2017-07-25/docs-2.json
+++ b/models/apis/auditmanager/2017-07-25/docs-2.json
@@ -577,6 +577,7 @@
       "refs": {
         "ControlSet$name": "<p> The name of the control set. </p>",
         "CreateAssessmentFrameworkControlSet$name": "<p> The name of the specified control set. </p>",
+        "UpdateAssessmentFrameworkControlSet$id": "<p> The unique identifier for the control set. </p>",
         "UpdateAssessmentFrameworkControlSet$name": "<p> The name of the control set. </p>"
       }
     },
@@ -1727,7 +1728,6 @@
         "UpdateAssessmentControlRequest$assessmentId": "<p> The identifier for the specified assessment. </p>",
         "UpdateAssessmentControlRequest$controlId": "<p> The identifier for the specified control. </p>",
         "UpdateAssessmentControlSetStatusRequest$assessmentId": "<p> The identifier for the specified assessment. </p>",
-        "UpdateAssessmentFrameworkControlSet$id": "<p> The unique identifier for the control set. </p>",
         "UpdateAssessmentFrameworkRequest$frameworkId": "<p> The identifier for the specified framework. </p>",
         "UpdateAssessmentRequest$assessmentId": "<p> The identifier for the specified assessment. </p>",
         "UpdateAssessmentStatusRequest$assessmentId": "<p> The identifier for the specified assessment. </p>",
diff --git a/models/endpoints/endpoints.json b/models/endpoints/endpoints.json
index 01fdb2540e..34b13c4e3d 100644
--- a/models/endpoints/endpoints.json
+++ b/models/endpoints/endpoints.json
@@ -7671,7 +7671,8 @@
           "protocols" : [ "https" ]
         },
         "endpoints" : {
-          "cn-north-1" : { }
+          "cn-north-1" : { },
+          "cn-northwest-1" : { }
         }
       },
       "runtime.sagemaker" : {
diff --git a/service/auditmanager/api.go b/service/auditmanager/api.go
index 7933a94a1d..74298c0a5a 100644
--- a/service/auditmanager/api.go
+++ b/service/auditmanager/api.go
@@ -12308,7 +12308,7 @@ type UpdateAssessmentFrameworkControlSet struct {
 	Controls []*CreateAssessmentFrameworkControl `locationName:"controls" min:"1" type:"list"`
 
 	// The unique identifier for the control set.
-	Id *string `locationName:"id" min:"36" type:"string"`
+	Id *string `locationName:"id" min:"1" type:"string"`
 
 	// The name of the control set.
 	Name *string `locationName:"name" min:"1" type:"string"`
@@ -12330,8 +12330,8 @@ func (s *UpdateAssessmentFrameworkControlSet) Validate() error {
 	if s.Controls != nil && len(s.Controls) < 1 {
 		invalidParams.Add(request.NewErrParamMinLen("Controls", 1))
 	}
-	if s.Id != nil && len(*s.Id) < 36 {
-		invalidParams.Add(request.NewErrParamMinLen("Id", 36))
+	if s.Id != nil && len(*s.Id) < 1 {
+		invalidParams.Add(request.NewErrParamMinLen("Id", 1))
 	}
 	if s.Name != nil && len(*s.Name) < 1 {
 		invalidParams.Add(request.NewErrParamMinLen("Name", 1))