diff --git a/lib/services/apimanagement/lib/operations/apiIssue.js b/lib/services/apimanagement/lib/operations/apiIssue.js
index 359db683c4..e0690110da 100644
--- a/lib/services/apimanagement/lib/operations/apiIssue.js
+++ b/lib/services/apimanagement/lib/operations/apiIssue.js
@@ -272,7 +272,7 @@ function _listByService(resourceGroupName, serviceName, apiId, options, callback
  *
  *                      {stream} [response] - The HTTP Response stream if an error did not occur.
  */
-function _head(resourceGroupName, serviceName, apiId, issueId, options, callback) {
+function _getEntityTag(resourceGroupName, serviceName, apiId, issueId, options, callback) {
    /* jshint validthis: true */
   let client = this.client;
   if(!callback && typeof options === 'function') {
@@ -1053,7 +1053,7 @@ function _deleteMethod(resourceGroupName, serviceName, apiId, issueId, ifMatch,
       return callback(err);
     }
     let statusCode = response.statusCode;
-    if (statusCode !== 204) {
+    if (statusCode !== 200 && statusCode !== 204) {
       let error = new Error(responseBody);
       error.statusCode = response.statusCode;
       error.request = msRest.stripRequest(httpRequest);
@@ -1224,7 +1224,7 @@ class ApiIssue {
   constructor(client) {
     this.client = client;
     this._listByService = _listByService;
-    this._head = _head;
+    this._getEntityTag = _getEntityTag;
     this._get = _get;
     this._createOrUpdate = _createOrUpdate;
     this._deleteMethod = _deleteMethod;
@@ -1374,11 +1374,11 @@ class ApiIssue {
    *
    * @reject {Error} - The error object.
    */
-  headWithHttpOperationResponse(resourceGroupName, serviceName, apiId, issueId, options) {
+  getEntityTagWithHttpOperationResponse(resourceGroupName, serviceName, apiId, issueId, options) {
     let client = this.client;
     let self = this;
     return new Promise((resolve, reject) => {
-      self._head(resourceGroupName, serviceName, apiId, issueId, options, (err, result, request, response) => {
+      self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, options, (err, result, request, response) => {
         let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
         httpOperationResponse.body = result;
         if (err) { reject(err); }
@@ -1428,7 +1428,7 @@ class ApiIssue {
    *
    *                      {stream} [response] - The HTTP Response stream if an error did not occur.
    */
-  head(resourceGroupName, serviceName, apiId, issueId, options, optionalCallback) {
+  getEntityTag(resourceGroupName, serviceName, apiId, issueId, options, optionalCallback) {
     let client = this.client;
     let self = this;
     if (!optionalCallback && typeof options === 'function') {
@@ -1437,14 +1437,14 @@ class ApiIssue {
     }
     if (!optionalCallback) {
       return new Promise((resolve, reject) => {
-        self._head(resourceGroupName, serviceName, apiId, issueId, options, (err, result, request, response) => {
+        self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, options, (err, result, request, response) => {
           if (err) { reject(err); }
           else { resolve(result); }
           return;
         });
       });
     } else {
-      return self._head(resourceGroupName, serviceName, apiId, issueId, options, optionalCallback);
+      return self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, options, optionalCallback);
     }
   }
 
diff --git a/lib/services/apimanagement/lib/operations/apiIssueAttachment.js b/lib/services/apimanagement/lib/operations/apiIssueAttachment.js
index f24510df3f..227dac18a5 100644
--- a/lib/services/apimanagement/lib/operations/apiIssueAttachment.js
+++ b/lib/services/apimanagement/lib/operations/apiIssueAttachment.js
@@ -295,7 +295,7 @@ function _listByService(resourceGroupName, serviceName, apiId, issueId, options,
  *
  *                      {stream} [response] - The HTTP Response stream if an error did not occur.
  */
-function _head(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, callback) {
+function _getEntityTag(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, callback) {
    /* jshint validthis: true */
   let client = this.client;
   if(!callback && typeof options === 'function') {
@@ -1154,7 +1154,7 @@ function _deleteMethod(resourceGroupName, serviceName, apiId, issueId, attachmen
       return callback(err);
     }
     let statusCode = response.statusCode;
-    if (statusCode !== 204) {
+    if (statusCode !== 200 && statusCode !== 204) {
       let error = new Error(responseBody);
       error.statusCode = response.statusCode;
       error.request = msRest.stripRequest(httpRequest);
@@ -1326,7 +1326,7 @@ class ApiIssueAttachment {
   constructor(client) {
     this.client = client;
     this._listByService = _listByService;
-    this._head = _head;
+    this._getEntityTag = _getEntityTag;
     this._get = _get;
     this._createOrUpdate = _createOrUpdate;
     this._deleteMethod = _deleteMethod;
@@ -1482,11 +1482,11 @@ class ApiIssueAttachment {
    *
    * @reject {Error} - The error object.
    */
-  headWithHttpOperationResponse(resourceGroupName, serviceName, apiId, issueId, attachmentId, options) {
+  getEntityTagWithHttpOperationResponse(resourceGroupName, serviceName, apiId, issueId, attachmentId, options) {
     let client = this.client;
     let self = this;
     return new Promise((resolve, reject) => {
-      self._head(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, (err, result, request, response) => {
+      self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, (err, result, request, response) => {
         let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
         httpOperationResponse.body = result;
         if (err) { reject(err); }
@@ -1539,7 +1539,7 @@ class ApiIssueAttachment {
    *
    *                      {stream} [response] - The HTTP Response stream if an error did not occur.
    */
-  head(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, optionalCallback) {
+  getEntityTag(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, optionalCallback) {
     let client = this.client;
     let self = this;
     if (!optionalCallback && typeof options === 'function') {
@@ -1548,14 +1548,14 @@ class ApiIssueAttachment {
     }
     if (!optionalCallback) {
       return new Promise((resolve, reject) => {
-        self._head(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, (err, result, request, response) => {
+        self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, (err, result, request, response) => {
           if (err) { reject(err); }
           else { resolve(result); }
           return;
         });
       });
     } else {
-      return self._head(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, optionalCallback);
+      return self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, attachmentId, options, optionalCallback);
     }
   }
 
diff --git a/lib/services/apimanagement/lib/operations/apiIssueComment.js b/lib/services/apimanagement/lib/operations/apiIssueComment.js
index 4029236dbf..91997c41ee 100644
--- a/lib/services/apimanagement/lib/operations/apiIssueComment.js
+++ b/lib/services/apimanagement/lib/operations/apiIssueComment.js
@@ -295,7 +295,7 @@ function _listByService(resourceGroupName, serviceName, apiId, issueId, options,
  *
  *                      {stream} [response] - The HTTP Response stream if an error did not occur.
  */
-function _head(resourceGroupName, serviceName, apiId, issueId, commentId, options, callback) {
+function _getEntityTag(resourceGroupName, serviceName, apiId, issueId, commentId, options, callback) {
    /* jshint validthis: true */
   let client = this.client;
   if(!callback && typeof options === 'function') {
@@ -1150,7 +1150,7 @@ function _deleteMethod(resourceGroupName, serviceName, apiId, issueId, commentId
       return callback(err);
     }
     let statusCode = response.statusCode;
-    if (statusCode !== 204) {
+    if (statusCode !== 200 && statusCode !== 204) {
       let error = new Error(responseBody);
       error.statusCode = response.statusCode;
       error.request = msRest.stripRequest(httpRequest);
@@ -1322,7 +1322,7 @@ class ApiIssueComment {
   constructor(client) {
     this.client = client;
     this._listByService = _listByService;
-    this._head = _head;
+    this._getEntityTag = _getEntityTag;
     this._get = _get;
     this._createOrUpdate = _createOrUpdate;
     this._deleteMethod = _deleteMethod;
@@ -1478,11 +1478,11 @@ class ApiIssueComment {
    *
    * @reject {Error} - The error object.
    */
-  headWithHttpOperationResponse(resourceGroupName, serviceName, apiId, issueId, commentId, options) {
+  getEntityTagWithHttpOperationResponse(resourceGroupName, serviceName, apiId, issueId, commentId, options) {
     let client = this.client;
     let self = this;
     return new Promise((resolve, reject) => {
-      self._head(resourceGroupName, serviceName, apiId, issueId, commentId, options, (err, result, request, response) => {
+      self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, commentId, options, (err, result, request, response) => {
         let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
         httpOperationResponse.body = result;
         if (err) { reject(err); }
@@ -1535,7 +1535,7 @@ class ApiIssueComment {
    *
    *                      {stream} [response] - The HTTP Response stream if an error did not occur.
    */
-  head(resourceGroupName, serviceName, apiId, issueId, commentId, options, optionalCallback) {
+  getEntityTag(resourceGroupName, serviceName, apiId, issueId, commentId, options, optionalCallback) {
     let client = this.client;
     let self = this;
     if (!optionalCallback && typeof options === 'function') {
@@ -1544,14 +1544,14 @@ class ApiIssueComment {
     }
     if (!optionalCallback) {
       return new Promise((resolve, reject) => {
-        self._head(resourceGroupName, serviceName, apiId, issueId, commentId, options, (err, result, request, response) => {
+        self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, commentId, options, (err, result, request, response) => {
           if (err) { reject(err); }
           else { resolve(result); }
           return;
         });
       });
     } else {
-      return self._head(resourceGroupName, serviceName, apiId, issueId, commentId, options, optionalCallback);
+      return self._getEntityTag(resourceGroupName, serviceName, apiId, issueId, commentId, options, optionalCallback);
     }
   }
 
diff --git a/lib/services/apimanagement/lib/operations/index.d.ts b/lib/services/apimanagement/lib/operations/index.d.ts
index bdfecfea76..91cfb380a4 100644
--- a/lib/services/apimanagement/lib/operations/index.d.ts
+++ b/lib/services/apimanagement/lib/operations/index.d.ts
@@ -5365,7 +5365,7 @@ export interface ApiIssue {
      *
      * @reject {Error|ServiceError} - The error object.
      */
-    headWithHttpOperationResponse(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<HttpOperationResponse<void>>;
+    getEntityTagWithHttpOperationResponse(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<HttpOperationResponse<void>>;
 
     /**
      * Gets the entity state (Etag) version of the Issue for an API specified by
@@ -5407,9 +5407,9 @@ export interface ApiIssue {
      *
      *                      {http.IncomingMessage} [response] - The HTTP Response stream if an error did not occur.
      */
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<void>;
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, callback: ServiceCallback<void>): void;
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, options: { customHeaders? : { [headerName: string]: string; } }, callback: ServiceCallback<void>): void;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<void>;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, callback: ServiceCallback<void>): void;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, options: { customHeaders? : { [headerName: string]: string; } }, callback: ServiceCallback<void>): void;
 
 
     /**
@@ -5864,7 +5864,7 @@ export interface ApiIssueComment {
      *
      * @reject {Error|ServiceError} - The error object.
      */
-    headWithHttpOperationResponse(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<HttpOperationResponse<void>>;
+    getEntityTagWithHttpOperationResponse(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<HttpOperationResponse<void>>;
 
     /**
      * Gets the entity state (Etag) version of the issue Comment for an API
@@ -5909,9 +5909,9 @@ export interface ApiIssueComment {
      *
      *                      {http.IncomingMessage} [response] - The HTTP Response stream if an error did not occur.
      */
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<void>;
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, callback: ServiceCallback<void>): void;
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, options: { customHeaders? : { [headerName: string]: string; } }, callback: ServiceCallback<void>): void;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<void>;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, callback: ServiceCallback<void>): void;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, commentId: string, options: { customHeaders? : { [headerName: string]: string; } }, callback: ServiceCallback<void>): void;
 
 
     /**
@@ -6371,7 +6371,7 @@ export interface ApiIssueAttachment {
      *
      * @reject {Error|ServiceError} - The error object.
      */
-    headWithHttpOperationResponse(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<HttpOperationResponse<void>>;
+    getEntityTagWithHttpOperationResponse(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<HttpOperationResponse<void>>;
 
     /**
      * Gets the entity state (Etag) version of the issue Attachment for an API
@@ -6416,9 +6416,9 @@ export interface ApiIssueAttachment {
      *
      *                      {http.IncomingMessage} [response] - The HTTP Response stream if an error did not occur.
      */
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<void>;
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, callback: ServiceCallback<void>): void;
-    head(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, options: { customHeaders? : { [headerName: string]: string; } }, callback: ServiceCallback<void>): void;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, options?: { customHeaders? : { [headerName: string]: string; } }): Promise<void>;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, callback: ServiceCallback<void>): void;
+    getEntityTag(resourceGroupName: string, serviceName: string, apiId: string, issueId: string, attachmentId: string, options: { customHeaders? : { [headerName: string]: string; } }, callback: ServiceCallback<void>): void;
 
 
     /**