diff --git a/Channel/metadata/V1/Service.php b/Channel/metadata/V1/Service.php
index 71319ee1a15d..7e02d5f6bc99 100644
Binary files a/Channel/metadata/V1/Service.php and b/Channel/metadata/V1/Service.php differ
diff --git a/Channel/samples/V1/CloudChannelServiceClient/check_cloud_identity_accounts_exist.php b/Channel/samples/V1/CloudChannelServiceClient/check_cloud_identity_accounts_exist.php
index 4397b7e99b51..4485be4347b3 100644
--- a/Channel/samples/V1/CloudChannelServiceClient/check_cloud_identity_accounts_exist.php
+++ b/Channel/samples/V1/CloudChannelServiceClient/check_cloud_identity_accounts_exist.php
@@ -51,7 +51,9 @@
  *
  * @param string $parent The reseller account's resource name.
  *                       Parent uses the format: accounts/{account_id}
- * @param string $domain Domain to fetch for Cloud Identity account customer.
+ * @param string $domain Domain to fetch for Cloud Identity account customers, including
+ *                       domain and team customers. For team customers, please use the domain for
+ *                       their emails.
  */
 function check_cloud_identity_accounts_exist_sample(string $parent, string $domain): void
 {
diff --git a/Channel/src/V1/CheckCloudIdentityAccountsExistRequest.php b/Channel/src/V1/CheckCloudIdentityAccountsExistRequest.php
index 519cdf4fcaed..39dde78e6f22 100644
--- a/Channel/src/V1/CheckCloudIdentityAccountsExistRequest.php
+++ b/Channel/src/V1/CheckCloudIdentityAccountsExistRequest.php
@@ -24,11 +24,20 @@ class CheckCloudIdentityAccountsExistRequest extends \Google\Protobuf\Internal\M
      */
     protected $parent = '';
     /**
-     * Required. Domain to fetch for Cloud Identity account customer.
+     * Required. Domain to fetch for Cloud Identity account customers, including
+     * domain and team customers. For team customers, please use the domain for
+     * their emails.
      *
      * Generated from protobuf field <code>string domain = 2 [(.google.api.field_behavior) = REQUIRED];</code>
      */
     protected $domain = '';
+    /**
+     * Optional. Primary admin email to fetch for Cloud Identity account team
+     * customer.
+     *
+     * Generated from protobuf field <code>string primary_admin_email = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    protected $primary_admin_email = '';
 
     /**
      * Constructor.
@@ -40,7 +49,12 @@ class CheckCloudIdentityAccountsExistRequest extends \Google\Protobuf\Internal\M
      *           Required. The reseller account's resource name.
      *           Parent uses the format: accounts/{account_id}
      *     @type string $domain
-     *           Required. Domain to fetch for Cloud Identity account customer.
+     *           Required. Domain to fetch for Cloud Identity account customers, including
+     *           domain and team customers. For team customers, please use the domain for
+     *           their emails.
+     *     @type string $primary_admin_email
+     *           Optional. Primary admin email to fetch for Cloud Identity account team
+     *           customer.
      * }
      */
     public function __construct($data = NULL) {
@@ -77,7 +91,9 @@ public function setParent($var)
     }
 
     /**
-     * Required. Domain to fetch for Cloud Identity account customer.
+     * Required. Domain to fetch for Cloud Identity account customers, including
+     * domain and team customers. For team customers, please use the domain for
+     * their emails.
      *
      * Generated from protobuf field <code>string domain = 2 [(.google.api.field_behavior) = REQUIRED];</code>
      * @return string
@@ -88,7 +104,9 @@ public function getDomain()
     }
 
     /**
-     * Required. Domain to fetch for Cloud Identity account customer.
+     * Required. Domain to fetch for Cloud Identity account customers, including
+     * domain and team customers. For team customers, please use the domain for
+     * their emails.
      *
      * Generated from protobuf field <code>string domain = 2 [(.google.api.field_behavior) = REQUIRED];</code>
      * @param string $var
@@ -102,5 +120,33 @@ public function setDomain($var)
         return $this;
     }
 
+    /**
+     * Optional. Primary admin email to fetch for Cloud Identity account team
+     * customer.
+     *
+     * Generated from protobuf field <code>string primary_admin_email = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return string
+     */
+    public function getPrimaryAdminEmail()
+    {
+        return $this->primary_admin_email;
+    }
+
+    /**
+     * Optional. Primary admin email to fetch for Cloud Identity account team
+     * customer.
+     *
+     * Generated from protobuf field <code>string primary_admin_email = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPrimaryAdminEmail($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->primary_admin_email = $var;
+
+        return $this;
+    }
+
 }
 
diff --git a/Channel/src/V1/CloudIdentityCustomerAccount.php b/Channel/src/V1/CloudIdentityCustomerAccount.php
index a49e1dea73ac..d0826c87fe24 100644
--- a/Channel/src/V1/CloudIdentityCustomerAccount.php
+++ b/Channel/src/V1/CloudIdentityCustomerAccount.php
@@ -44,6 +44,19 @@ class CloudIdentityCustomerAccount extends \Google\Protobuf\Internal\Message
      * Generated from protobuf field <code>string customer_cloud_identity_id = 4;</code>
      */
     protected $customer_cloud_identity_id = '';
+    /**
+     * If existing = true, the type of the customer.
+     *
+     * Generated from protobuf field <code>.google.cloud.channel.v1.CloudIdentityInfo.CustomerType customer_type = 5;</code>
+     */
+    protected $customer_type = 0;
+    /**
+     * If existing = true, and is 2-tier customer, the channel partner of the
+     * customer.
+     *
+     * Generated from protobuf field <code>string channel_partner_cloud_identity_id = 6;</code>
+     */
+    protected $channel_partner_cloud_identity_id = '';
 
     /**
      * Constructor.
@@ -63,6 +76,11 @@ class CloudIdentityCustomerAccount extends \Google\Protobuf\Internal\Message
      *           accounts/{account_id}/customers/{customer_id}
      *     @type string $customer_cloud_identity_id
      *           If existing = true, the Cloud Identity ID of the customer.
+     *     @type int $customer_type
+     *           If existing = true, the type of the customer.
+     *     @type string $channel_partner_cloud_identity_id
+     *           If existing = true, and is 2-tier customer, the channel partner of the
+     *           customer.
      * }
      */
     public function __construct($data = NULL) {
@@ -182,5 +200,59 @@ public function setCustomerCloudIdentityId($var)
         return $this;
     }
 
+    /**
+     * If existing = true, the type of the customer.
+     *
+     * Generated from protobuf field <code>.google.cloud.channel.v1.CloudIdentityInfo.CustomerType customer_type = 5;</code>
+     * @return int
+     */
+    public function getCustomerType()
+    {
+        return $this->customer_type;
+    }
+
+    /**
+     * If existing = true, the type of the customer.
+     *
+     * Generated from protobuf field <code>.google.cloud.channel.v1.CloudIdentityInfo.CustomerType customer_type = 5;</code>
+     * @param int $var
+     * @return $this
+     */
+    public function setCustomerType($var)
+    {
+        GPBUtil::checkEnum($var, \Google\Cloud\Channel\V1\CloudIdentityInfo\CustomerType::class);
+        $this->customer_type = $var;
+
+        return $this;
+    }
+
+    /**
+     * If existing = true, and is 2-tier customer, the channel partner of the
+     * customer.
+     *
+     * Generated from protobuf field <code>string channel_partner_cloud_identity_id = 6;</code>
+     * @return string
+     */
+    public function getChannelPartnerCloudIdentityId()
+    {
+        return $this->channel_partner_cloud_identity_id;
+    }
+
+    /**
+     * If existing = true, and is 2-tier customer, the channel partner of the
+     * customer.
+     *
+     * Generated from protobuf field <code>string channel_partner_cloud_identity_id = 6;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setChannelPartnerCloudIdentityId($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->channel_partner_cloud_identity_id = $var;
+
+        return $this;
+    }
+
 }
 
diff --git a/Channel/src/V1/ImportCustomerRequest.php b/Channel/src/V1/ImportCustomerRequest.php
index b33687134d58..66b9c2eb6a15 100644
--- a/Channel/src/V1/ImportCustomerRequest.php
+++ b/Channel/src/V1/ImportCustomerRequest.php
@@ -70,6 +70,8 @@ class ImportCustomerRequest extends \Google\Protobuf\Internal\Message
      *           Required. Customer domain.
      *     @type string $cloud_identity_id
      *           Required. Customer's Cloud Identity ID
+     *     @type string $primary_admin_email
+     *           Required. Customer's primary admin email.
      *     @type string $parent
      *           Required. The resource name of the reseller's account.
      *           Parent takes the format: accounts/{account_id} or
@@ -161,6 +163,37 @@ public function setCloudIdentityId($var)
         return $this;
     }
 
+    /**
+     * Required. Customer's primary admin email.
+     *
+     * Generated from protobuf field <code>string primary_admin_email = 8 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return string
+     */
+    public function getPrimaryAdminEmail()
+    {
+        return $this->readOneof(8);
+    }
+
+    public function hasPrimaryAdminEmail()
+    {
+        return $this->hasOneof(8);
+    }
+
+    /**
+     * Required. Customer's primary admin email.
+     *
+     * Generated from protobuf field <code>string primary_admin_email = 8 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setPrimaryAdminEmail($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->writeOneof(8, $var);
+
+        return $this;
+    }
+
     /**
      * Required. The resource name of the reseller's account.
      * Parent takes the format: accounts/{account_id} or