--- /dev/null
+// Copyright 2019 Google LLC.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+syntax = "proto3";
+
+package google.ads.googleads.v1.enums;
+
+import "google/api/annotations.proto";
+
+option csharp_namespace = "Google.Ads.GoogleAds.V1.Enums";
+option go_package = "google.golang.org/genproto/googleapis/ads/googleads/v1/enums;enums";
+option java_multiple_files = true;
+option java_outer_classname = "UserListTypeProto";
+option java_package = "com.google.ads.googleads.v1.enums";
+option objc_class_prefix = "GAA";
+option php_namespace = "Google\\Ads\\GoogleAds\\V1\\Enums";
+option ruby_package = "Google::Ads::GoogleAds::V1::Enums";
+// Proto file describing user list type.
+
+// The user list types.
+message UserListTypeEnum {
+ // Enum containing possible user list types.
+ enum UserListType {
+ // Not specified.
+ UNSPECIFIED = 0;
+
+ // Used for return value only. Represents value unknown in this version.
+ UNKNOWN = 1;
+
+ // UserList represented as a collection of conversion types.
+ REMARKETING = 2;
+
+ // UserList represented as a combination of other user lists/interests.
+ LOGICAL = 3;
+
+ // UserList created in the Google Ad Manager platform.
+ EXTERNAL_REMARKETING = 4;
+
+ // UserList associated with a rule.
+ RULE_BASED = 5;
+
+ // UserList with users similar to users of another UserList.
+ SIMILAR = 6;
+
+ // UserList of first-party CRM data provided by advertiser in the form of
+ // emails or other formats.
+ CRM_BASED = 7;
+ }
+
+
+}