diff --git a/Controller/GrouperGroupsController.php b/Controller/GrouperGroupsController.php
index 7796d6b..3baeed7 100644
--- a/Controller/GrouperGroupsController.php
+++ b/Controller/GrouperGroupsController.php
@@ -215,7 +215,7 @@ public function addSubscriber(): void
       throw $e;
     }
 
-    $this->restResponse(HttpStatusCodesEnum::HTTP_OK);
+    $this->restResponse(HttpStatusCodesEnum::HTTP_CREATED);
   }
 
   /**
@@ -464,7 +464,7 @@ public function joinGroup(): void
       throw $e;
     }
 
-    $this->restResponse(HttpStatusCodesEnum::HTTP_OK);
+    $this->restResponse(HttpStatusCodesEnum::HTTP_CREATED);
   }
 
   /**
diff --git a/Lib/GrouperApiAccess.php b/Lib/GrouperApiAccess.php
index 7c3b7b5..bf5c9e8 100644
--- a/Lib/GrouperApiAccess.php
+++ b/Lib/GrouperApiAccess.php
@@ -407,29 +407,28 @@ public function getUserGroupMemberships(string $actorUserId, string $userId): ar
    */
   public function getGrouperUserMemberships(string $userId, string $groupType): array
   {
-    if (in_array($groupType, [
+    if(!in_array($groupType, [
       GrouperGroupTypeEnum::OPTINS,
-      GrouperGroupTypeEnum::OPTOUTS], true)
-    ) {
-      $subjectId = 'GrouperAll';
-    } elseif (in_array($groupType, [
+      GrouperGroupTypeEnum::OPTOUTS,
       GrouperGroupTypeEnum::ADMIN,
       GrouperGroupTypeEnum::UPDATE,
-      GrouperGroupTypeEnum::STEM_ADMIN], true)
+      GrouperGroupTypeEnum::STEM_ADMIN
+    ], true)
     ) {
-      $subjectId = $userId;
-    } else {
       CakeLog::write('error', __METHOD__ . ": Option of {$groupType} is not supported");
-      throw new GrouperLiteWidgetException("Option of {$groupType} is not supported");
+      throw new BadRequestException("Option of {$groupType} is not supported");
     }
 
+    $isOptinsOrOptouts = in_array($groupType,
+                                  [GrouperGroupTypeEnum::OPTINS, GrouperGroupTypeEnum::OPTOUTS],
+                                  true);
+
     //Build request logic
     $data = [];
     $data['WsRestGetMembershipsRequest']['fieldName'] = $groupType;
-    $data['WsRestGetMembershipsRequest']['wsSubjectLookups'][0]['subjectId'] = $subjectId;
+    $data['WsRestGetMembershipsRequest']['wsSubjectLookups'][0]['subjectId'] = $isOptinsOrOptouts ? GrouperConfigEnums::ALL : $userId;
 
-    if ($groupType == GrouperGroupTypeEnum::OPTINS
-      || $groupType == GrouperGroupTypeEnum::OPTOUTS) {
+    if ($isOptinsOrOptouts) {
       // Build request logic, 2 subjectId's, second is for when user in "Secret" Optin/Optout Group
       $data['WsRestGetMembershipsRequest']['wsSubjectLookups'][1]['subjectId'] = $userId;
     }
@@ -455,8 +454,7 @@ public function getGrouperUserMemberships(string $userId, string $groupType): ar
    * @param   string  $groupName
    *
    * @return array Listing of Members belonging to Grouper Group
-   * @throws GrouperLiteWidgetException
-   * @throws JsonException
+   * @throws GrouperLiteWidgetException|JsonException|NotFoundException
    */
   public function getGroupMembers(string $actorUserId, string $groupName): array
   {
@@ -473,7 +471,7 @@ public function getGroupMembers(string $actorUserId, string $groupName): array
       ]
     ];
 
-    $actionEndpoint = "/groups";
+    $actionEndpoint = '/groups';
 
     try {
       $results = $this->http->sendRequest('POST',
diff --git a/Lib/enum.php b/Lib/enum.php
index c9799a6..815b144 100644
--- a/Lib/enum.php
+++ b/Lib/enum.php
@@ -20,14 +20,19 @@ class GrouperSpecialGroups {
 }
 
 class GrouperResultCodesEnum {
+  const SUCCESS_ALREADY_EXISTED = 'SUCCESS_ALREADY_EXISTED';
   const EXECUTE_FAILED = 'EXECUTE_FAILED';
   const GROUP_NOT_FOUND = 'GROUP_NOT_FOUND';
   const IS_MEMBER = 'IS_MEMBER';
+  const IS_NOT_MEMBER = 'IS_NOT_MEMBER';
   const NO_SUCH_OBJECT = 'NO_SUCH_OBJECT';
   const PROBLEM_WITH_ASSIGNMENT = 'PROBLEM_WITH_ASSIGNMENT';
   const SUBJECT_NOT_FOUND = 'SUBJECT_NOT_FOUND';
   const SUCCESS   = 'SUCCESS';
+  const SUCCESS_INSERTED   = 'SUCCESS_INSERTED';
+  const SUCCESS_NO_CHANGES_NEEDED = 'SUCCESS_NO_CHANGES_NEEDED';
   const SUCCESS_NO_INFO = 'SUCCESS_NO_INFO';
+  const SUCCESS_UPDATED   = 'SUCCESS_UPDATED';
 }
 
 class GrouperCodesToExceptionClassEnum {
@@ -45,4 +50,9 @@ class GrouperGroupTypeEnum {
   const OPTOUTS = 'optouts';
   const STEM_ADMIN = 'stemAdmin';
   const UPDATE = 'update';
+}
+
+class GrouperConfigEnums {
+  //  https://github.com/Internet2/grouper/blob/GROUPER_4_BRANCH/grouper/src/grouper/edu/internet2/middleware/grouper/cfg/GrouperConfig.java
+  const ALL = 'GrouperAll';
 }
\ No newline at end of file