diff --git a/ContactCenterInsights/samples/V1/ContactCenterInsightsClient/bulk_delete_conversations.php b/ContactCenterInsights/samples/V1/ContactCenterInsightsClient/bulk_delete_conversations.php
index cd53ae02809a..0ca1f6fb5afe 100644
--- a/ContactCenterInsights/samples/V1/ContactCenterInsightsClient/bulk_delete_conversations.php
+++ b/ContactCenterInsights/samples/V1/ContactCenterInsightsClient/bulk_delete_conversations.php
@@ -32,7 +32,7 @@
 /**
  * Deletes multiple conversations in a single request.
  *
- * @param string $formattedParent The parent resource to create analyses in.
+ * @param string $formattedParent The parent resource to delete conversations from.
  *                                Format:
  *                                projects/{project}/locations/{location}
  *                                Please see {@see ContactCenterInsightsClient::locationName()} for help formatting this field.
diff --git a/ContactCenterInsights/src/V1/BulkDeleteConversationsRequest.php b/ContactCenterInsights/src/V1/BulkDeleteConversationsRequest.php
index 84517496ead6..b701206c4d4f 100644
--- a/ContactCenterInsights/src/V1/BulkDeleteConversationsRequest.php
+++ b/ContactCenterInsights/src/V1/BulkDeleteConversationsRequest.php
@@ -16,7 +16,7 @@
 class BulkDeleteConversationsRequest extends \Google\Protobuf\Internal\Message
 {
     /**
-     * Required. The parent resource to create analyses in.
+     * Required. The parent resource to delete conversations from.
      * Format:
      * projects/{project}/locations/{location}
      *
@@ -24,14 +24,13 @@ class BulkDeleteConversationsRequest extends \Google\Protobuf\Internal\Message
      */
     private $parent = '';
     /**
-     * Filter used to select the subset of conversations to analyze.
+     * Filter used to select the subset of conversations to delete.
      *
      * Generated from protobuf field <code>string filter = 2;</code>
      */
     private $filter = '';
     /**
-     * Maximum number of conversations to delete. The default is 1000. It can be
-     * changed by setting the `max_delete_count` field.
+     * Maximum number of conversations to delete.
      *
      * Generated from protobuf field <code>int32 max_delete_count = 3;</code>
      */
@@ -46,11 +45,11 @@ class BulkDeleteConversationsRequest extends \Google\Protobuf\Internal\Message
     private $force = false;
 
     /**
-     * @param string $parent Required. The parent resource to create analyses in.
+     * @param string $parent Required. The parent resource to delete conversations from.
      *                       Format:
      *                       projects/{project}/locations/{location}
      *                       Please see {@see ContactCenterInsightsClient::locationName()} for help formatting this field.
-     * @param string $filter Filter used to select the subset of conversations to analyze.
+     * @param string $filter Filter used to select the subset of conversations to delete.
      *
      * @return \Google\Cloud\ContactCenterInsights\V1\BulkDeleteConversationsRequest
      *
@@ -70,14 +69,13 @@ public static function build(string $parent, string $filter): self
      *     Optional. Data for populating the Message object.
      *
      *     @type string $parent
-     *           Required. The parent resource to create analyses in.
+     *           Required. The parent resource to delete conversations from.
      *           Format:
      *           projects/{project}/locations/{location}
      *     @type string $filter
-     *           Filter used to select the subset of conversations to analyze.
+     *           Filter used to select the subset of conversations to delete.
      *     @type int $max_delete_count
-     *           Maximum number of conversations to delete. The default is 1000. It can be
-     *           changed by setting the `max_delete_count` field.
+     *           Maximum number of conversations to delete.
      *     @type bool $force
      *           If set to true, all of this conversation's analyses will also be deleted.
      *           Otherwise, the request will only succeed if the conversation has no
@@ -90,7 +88,7 @@ public function __construct($data = NULL) {
     }
 
     /**
-     * Required. The parent resource to create analyses in.
+     * Required. The parent resource to delete conversations from.
      * Format:
      * projects/{project}/locations/{location}
      *
@@ -103,7 +101,7 @@ public function getParent()
     }
 
     /**
-     * Required. The parent resource to create analyses in.
+     * Required. The parent resource to delete conversations from.
      * Format:
      * projects/{project}/locations/{location}
      *
@@ -120,7 +118,7 @@ public function setParent($var)
     }
 
     /**
-     * Filter used to select the subset of conversations to analyze.
+     * Filter used to select the subset of conversations to delete.
      *
      * Generated from protobuf field <code>string filter = 2;</code>
      * @return string
@@ -131,7 +129,7 @@ public function getFilter()
     }
 
     /**
-     * Filter used to select the subset of conversations to analyze.
+     * Filter used to select the subset of conversations to delete.
      *
      * Generated from protobuf field <code>string filter = 2;</code>
      * @param string $var
@@ -146,8 +144,7 @@ public function setFilter($var)
     }
 
     /**
-     * Maximum number of conversations to delete. The default is 1000. It can be
-     * changed by setting the `max_delete_count` field.
+     * Maximum number of conversations to delete.
      *
      * Generated from protobuf field <code>int32 max_delete_count = 3;</code>
      * @return int
@@ -158,8 +155,7 @@ public function getMaxDeleteCount()
     }
 
     /**
-     * Maximum number of conversations to delete. The default is 1000. It can be
-     * changed by setting the `max_delete_count` field.
+     * Maximum number of conversations to delete.
      *
      * Generated from protobuf field <code>int32 max_delete_count = 3;</code>
      * @param int $var
diff --git a/ContactCenterInsights/src/V1/BulkDeleteConversationsResponse.php b/ContactCenterInsights/src/V1/BulkDeleteConversationsResponse.php
index a052ffdd6e56..ca52f6da6873 100644
--- a/ContactCenterInsights/src/V1/BulkDeleteConversationsResponse.php
+++ b/ContactCenterInsights/src/V1/BulkDeleteConversationsResponse.php
@@ -9,7 +9,7 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The response for a bulk analyze conversations operation.
+ * The response for a bulk delete conversations operation.
  *
  * Generated from protobuf message <code>google.cloud.contactcenterinsights.v1.BulkDeleteConversationsResponse</code>
  */
diff --git a/ContactCenterInsights/src/V1/Gapic/ContactCenterInsightsGapicClient.php b/ContactCenterInsights/src/V1/Gapic/ContactCenterInsightsGapicClient.php
index 4818c089a9d8..f530632b828c 100644
--- a/ContactCenterInsights/src/V1/Gapic/ContactCenterInsightsGapicClient.php
+++ b/ContactCenterInsights/src/V1/Gapic/ContactCenterInsightsGapicClient.php
@@ -951,17 +951,16 @@ public function bulkAnalyzeConversations(
      * }
      * ```
      *
-     * @param string $parent       Required. The parent resource to create analyses in.
+     * @param string $parent       Required. The parent resource to delete conversations from.
      *                             Format:
      *                             projects/{project}/locations/{location}
      * @param array  $optionalArgs {
      *     Optional.
      *
      *     @type string $filter
-     *           Filter used to select the subset of conversations to analyze.
+     *           Filter used to select the subset of conversations to delete.
      *     @type int $maxDeleteCount
-     *           Maximum number of conversations to delete. The default is 1000. It can be
-     *           changed by setting the `max_delete_count` field.
+     *           Maximum number of conversations to delete.
      *     @type bool $force
      *           If set to true, all of this conversation's analyses will also be deleted.
      *           Otherwise, the request will only succeed if the conversation has no
@@ -3272,11 +3271,11 @@ public function updateView($view, array $optionalArgs = [])
      *           This value should be 4-64 characters and must match the regular
      *           expression `^[a-z0-9-]{4,64}$`. Valid characters are `[a-z][0-9]-`
      *     @type RedactionConfig $redactionConfig
-     *           Optional. DLP settings for transcript redaction. Optional, will default to
-     *           the config specified in Settings.
+     *           Optional. DLP settings for transcript redaction. Will default to the config
+     *           specified in Settings.
      *     @type SpeechConfig $speechConfig
-     *           Optional. Default Speech-to-Text configuration. Optional, will default to
-     *           the config specified in Settings.
+     *           Optional. Speech-to-Text configuration. Will default to the config
+     *           specified in Settings.
      *     @type RetrySettings|array $retrySettings
      *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
      *           associative array of retry settings parameters. See the documentation on
diff --git a/ContactCenterInsights/src/V1/IngestConversationsRequest/GcsSource/BucketObjectType.php b/ContactCenterInsights/src/V1/IngestConversationsRequest/GcsSource/BucketObjectType.php
index 4fb435e7dd25..b85c326e2775 100644
--- a/ContactCenterInsights/src/V1/IngestConversationsRequest/GcsSource/BucketObjectType.php
+++ b/ContactCenterInsights/src/V1/IngestConversationsRequest/GcsSource/BucketObjectType.php
@@ -12,7 +12,7 @@
 class BucketObjectType
 {
     /**
-     * The object type is unspecified and will default to TRANSCRIPT.
+     * The object type is unspecified and will default to `TRANSCRIPT`.
      *
      * Generated from protobuf enum <code>BUCKET_OBJECT_TYPE_UNSPECIFIED = 0;</code>
      */
diff --git a/ContactCenterInsights/src/V1/UploadConversationRequest.php b/ContactCenterInsights/src/V1/UploadConversationRequest.php
index 1b2cc5981490..e6d8abed38a8 100644
--- a/ContactCenterInsights/src/V1/UploadConversationRequest.php
+++ b/ContactCenterInsights/src/V1/UploadConversationRequest.php
@@ -38,15 +38,15 @@ class UploadConversationRequest extends \Google\Protobuf\Internal\Message
      */
     private $conversation_id = '';
     /**
-     * Optional. DLP settings for transcript redaction. Optional, will default to
-     * the config specified in Settings.
+     * Optional. DLP settings for transcript redaction. Will default to the config
+     * specified in Settings.
      *
      * Generated from protobuf field <code>.google.cloud.contactcenterinsights.v1.RedactionConfig redaction_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
     private $redaction_config = null;
     /**
-     * Optional. Default Speech-to-Text configuration. Optional, will default to
-     * the config specified in Settings.
+     * Optional. Speech-to-Text configuration. Will default to the config
+     * specified in Settings.
      *
      * Generated from protobuf field <code>.google.cloud.contactcenterinsights.v1.SpeechConfig speech_config = 11 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
@@ -69,11 +69,11 @@ class UploadConversationRequest extends \Google\Protobuf\Internal\Message
      *           This value should be 4-64 characters and must match the regular
      *           expression `^[a-z0-9-]{4,64}$`. Valid characters are `[a-z][0-9]-`
      *     @type \Google\Cloud\ContactCenterInsights\V1\RedactionConfig $redaction_config
-     *           Optional. DLP settings for transcript redaction. Optional, will default to
-     *           the config specified in Settings.
+     *           Optional. DLP settings for transcript redaction. Will default to the config
+     *           specified in Settings.
      *     @type \Google\Cloud\ContactCenterInsights\V1\SpeechConfig $speech_config
-     *           Optional. Default Speech-to-Text configuration. Optional, will default to
-     *           the config specified in Settings.
+     *           Optional. Speech-to-Text configuration. Will default to the config
+     *           specified in Settings.
      * }
      */
     public function __construct($data = NULL) {
@@ -178,8 +178,8 @@ public function setConversationId($var)
     }
 
     /**
-     * Optional. DLP settings for transcript redaction. Optional, will default to
-     * the config specified in Settings.
+     * Optional. DLP settings for transcript redaction. Will default to the config
+     * specified in Settings.
      *
      * Generated from protobuf field <code>.google.cloud.contactcenterinsights.v1.RedactionConfig redaction_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @return \Google\Cloud\ContactCenterInsights\V1\RedactionConfig|null
@@ -200,8 +200,8 @@ public function clearRedactionConfig()
     }
 
     /**
-     * Optional. DLP settings for transcript redaction. Optional, will default to
-     * the config specified in Settings.
+     * Optional. DLP settings for transcript redaction. Will default to the config
+     * specified in Settings.
      *
      * Generated from protobuf field <code>.google.cloud.contactcenterinsights.v1.RedactionConfig redaction_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @param \Google\Cloud\ContactCenterInsights\V1\RedactionConfig $var
@@ -216,8 +216,8 @@ public function setRedactionConfig($var)
     }
 
     /**
-     * Optional. Default Speech-to-Text configuration. Optional, will default to
-     * the config specified in Settings.
+     * Optional. Speech-to-Text configuration. Will default to the config
+     * specified in Settings.
      *
      * Generated from protobuf field <code>.google.cloud.contactcenterinsights.v1.SpeechConfig speech_config = 11 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @return \Google\Cloud\ContactCenterInsights\V1\SpeechConfig|null
@@ -238,8 +238,8 @@ public function clearSpeechConfig()
     }
 
     /**
-     * Optional. Default Speech-to-Text configuration. Optional, will default to
-     * the config specified in Settings.
+     * Optional. Speech-to-Text configuration. Will default to the config
+     * specified in Settings.
      *
      * Generated from protobuf field <code>.google.cloud.contactcenterinsights.v1.SpeechConfig speech_config = 11 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @param \Google\Cloud\ContactCenterInsights\V1\SpeechConfig $var