diff --git a/java-contentwarehouse/README.md b/java-contentwarehouse/README.md
index 6df5fb143137..ab9a2bb291fe 100644
--- a/java-contentwarehouse/README.md
+++ b/java-contentwarehouse/README.md
@@ -23,7 +23,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file:
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>26.22.0</version>
+      <version>26.23.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>
@@ -201,7 +201,7 @@ Java is a registered trademark of Oracle and/or its affiliates.
 [kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/google-cloud-java/java11.html
 [stability-image]: https://img.shields.io/badge/stability-preview-yellow
 [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-contentwarehouse.svg
-[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-contentwarehouse/0.19.0
+[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-contentwarehouse/0.20.0
 [authentication]: https://github.com/googleapis/google-cloud-java#authentication
 [auth-scopes]: https://developers.google.com/identity/protocols/oauth2/scopes
 [predefined-iam-roles]: https://cloud.google.com/iam/docs/understanding-roles#predefined_roles
diff --git a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FileTypeFilter.java b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FileTypeFilter.java
index 6929213dfea4..bf38fdfb1802 100644
--- a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FileTypeFilter.java
+++ b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FileTypeFilter.java
@@ -112,6 +112,16 @@ public enum FileType implements com.google.protobuf.ProtocolMessageEnum {
      * <code>DOCUMENT = 3;</code>
      */
     DOCUMENT(3),
+    /**
+     *
+     *
+     * <pre>
+     * Returns only root folders
+     * </pre>
+     *
+     * <code>ROOT_FOLDER = 4;</code>
+     */
+    ROOT_FOLDER(4),
     UNRECOGNIZED(-1),
     ;
 
@@ -155,6 +165,16 @@ public enum FileType implements com.google.protobuf.ProtocolMessageEnum {
      * <code>DOCUMENT = 3;</code>
      */
     public static final int DOCUMENT_VALUE = 3;
+    /**
+     *
+     *
+     * <pre>
+     * Returns only root folders
+     * </pre>
+     *
+     * <code>ROOT_FOLDER = 4;</code>
+     */
+    public static final int ROOT_FOLDER_VALUE = 4;
 
     public final int getNumber() {
       if (this == UNRECOGNIZED) {
@@ -188,6 +208,8 @@ public static FileType forNumber(int value) {
           return FOLDER;
         case 3:
           return DOCUMENT;
+        case 4:
+          return ROOT_FOLDER;
         default:
           return null;
       }
diff --git a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FiltersProto.java b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FiltersProto.java
index 839f3d3d9073..d1c06f56e5e4 100644
--- a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FiltersProto.java
+++ b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/FiltersProto.java
@@ -85,24 +85,25 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ATE_TIME\020\002\022\024\n\020DISPOSITION_TIME\020\003\"v\n\016Prop"
           + "ertyFilter\022Q\n\024document_schema_name\030\001 \001(\t"
           + "B3\372A0\n.contentwarehouse.googleapis.com/D"
-          + "ocumentSchema\022\021\n\tcondition\030\002 \001(\t\"\250\001\n\016Fil"
+          + "ocumentSchema\022\021\n\tcondition\030\002 \001(\t\"\271\001\n\016Fil"
           + "eTypeFilter\022L\n\tfile_type\030\001 \001(\01629.google."
           + "cloud.contentwarehouse.v1.FileTypeFilter"
-          + ".FileType\"H\n\010FileType\022\031\n\025FILE_TYPE_UNSPE"
+          + ".FileType\"Y\n\010FileType\022\031\n\025FILE_TYPE_UNSPE"
           + "CIFIED\020\000\022\007\n\003ALL\020\001\022\n\n\006FOLDER\020\002\022\014\n\010DOCUMEN"
-          + "T\020\003\"u\n\025CustomWeightsMetadata\022\\\n\032weighted"
-          + "_schema_properties\030\001 \003(\01328.google.cloud."
-          + "contentwarehouse.v1.WeightedSchemaProper"
-          + "ty\"\203\001\n\026WeightedSchemaProperty\022Q\n\024documen"
-          + "t_schema_name\030\001 \001(\tB3\372A0\n.contentwarehou"
-          + "se.googleapis.com/DocumentSchema\022\026\n\016prop"
-          + "erty_names\030\002 \003(\tB\364\001\n$com.google.cloud.co"
-          + "ntentwarehouse.v1B\014FiltersProtoP\001ZPcloud"
-          + ".google.com/go/contentwarehouse/apiv1/co"
-          + "ntentwarehousepb;contentwarehousepb\252\002 Go"
-          + "ogle.Cloud.ContentWarehouse.V1\312\002 Google\\"
-          + "Cloud\\ContentWarehouse\\V1\352\002#Google::Clou"
-          + "d::ContentWarehouse::V1b\006proto3"
+          + "T\020\003\022\017\n\013ROOT_FOLDER\020\004\"u\n\025CustomWeightsMet"
+          + "adata\022\\\n\032weighted_schema_properties\030\001 \003("
+          + "\01328.google.cloud.contentwarehouse.v1.Wei"
+          + "ghtedSchemaProperty\"\203\001\n\026WeightedSchemaPr"
+          + "operty\022Q\n\024document_schema_name\030\001 \001(\tB3\372A"
+          + "0\n.contentwarehouse.googleapis.com/Docum"
+          + "entSchema\022\026\n\016property_names\030\002 \003(\tB\364\001\n$co"
+          + "m.google.cloud.contentwarehouse.v1B\014Filt"
+          + "ersProtoP\001ZPcloud.google.com/go/contentw"
+          + "arehouse/apiv1/contentwarehousepb;conten"
+          + "twarehousepb\252\002 Google.Cloud.ContentWareh"
+          + "ouse.V1\312\002 Google\\Cloud\\ContentWarehouse\\"
+          + "V1\352\002#Google::Cloud::ContentWarehouse::V1"
+          + "b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfig.java b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfig.java
index 55130c6c0e65..565c24faebd3 100644
--- a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfig.java
+++ b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfig.java
@@ -39,6 +39,7 @@ private IngestPipelineConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> b
 
   private IngestPipelineConfig() {
     folder_ = "";
+    cloudFunction_ = "";
   }
 
   @java.lang.Override
@@ -235,6 +236,101 @@ public com.google.protobuf.ByteString getFolderBytes() {
     }
   }
 
+  public static final int CLOUD_FUNCTION_FIELD_NUMBER = 4;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object cloudFunction_ = "";
+  /**
+   *
+   *
+   * <pre>
+   * The Cloud Function resource name. The Cloud Function needs to live inside
+   * consumer project and is accessible to Document AI Warehouse P4SA.
+   * Only Cloud Functions V2 is supported. Cloud function execution should
+   * complete within 5 minutes or this file ingestion may fail due to timeout.
+   * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+   * The following keys are available the request json payload.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * reference_id
+   * * document_schema_name
+   * * raw_document_path
+   * * raw_document_file_type
+   *
+   * The following keys from the cloud function json response payload will be
+   * ingested to the Document AI Warehouse as part of Document proto content
+   * and/or related information. The original values will be overridden if any
+   * key is present in the response.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * document_acl_policy
+   * * folder
+   * </pre>
+   *
+   * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The cloudFunction.
+   */
+  @java.lang.Override
+  public java.lang.String getCloudFunction() {
+    java.lang.Object ref = cloudFunction_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      cloudFunction_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The Cloud Function resource name. The Cloud Function needs to live inside
+   * consumer project and is accessible to Document AI Warehouse P4SA.
+   * Only Cloud Functions V2 is supported. Cloud function execution should
+   * complete within 5 minutes or this file ingestion may fail due to timeout.
+   * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+   * The following keys are available the request json payload.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * reference_id
+   * * document_schema_name
+   * * raw_document_path
+   * * raw_document_file_type
+   *
+   * The following keys from the cloud function json response payload will be
+   * ingested to the Document AI Warehouse as part of Document proto content
+   * and/or related information. The original values will be overridden if any
+   * key is present in the response.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * document_acl_policy
+   * * folder
+   * </pre>
+   *
+   * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for cloudFunction.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getCloudFunctionBytes() {
+    java.lang.Object ref = cloudFunction_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      cloudFunction_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -258,6 +354,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(folder_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, folder_);
     }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudFunction_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, cloudFunction_);
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -277,6 +376,9 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(folder_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, folder_);
     }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudFunction_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, cloudFunction_);
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -299,6 +401,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     if (getEnableDocumentTextExtraction() != other.getEnableDocumentTextExtraction()) return false;
     if (!getFolder().equals(other.getFolder())) return false;
+    if (!getCloudFunction().equals(other.getCloudFunction())) return false;
     if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
@@ -319,6 +422,8 @@ public int hashCode() {
         (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableDocumentTextExtraction());
     hash = (37 * hash) + FOLDER_FIELD_NUMBER;
     hash = (53 * hash) + getFolder().hashCode();
+    hash = (37 * hash) + CLOUD_FUNCTION_FIELD_NUMBER;
+    hash = (53 * hash) + getCloudFunction().hashCode();
     hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
@@ -466,6 +571,7 @@ public Builder clear() {
       }
       enableDocumentTextExtraction_ = false;
       folder_ = "";
+      cloudFunction_ = "";
       return this;
     }
 
@@ -514,6 +620,9 @@ private void buildPartial0(com.google.cloud.contentwarehouse.v1.IngestPipelineCo
       if (((from_bitField0_ & 0x00000004) != 0)) {
         result.folder_ = folder_;
       }
+      if (((from_bitField0_ & 0x00000008) != 0)) {
+        result.cloudFunction_ = cloudFunction_;
+      }
     }
 
     @java.lang.Override
@@ -573,6 +682,11 @@ public Builder mergeFrom(com.google.cloud.contentwarehouse.v1.IngestPipelineConf
         bitField0_ |= 0x00000004;
         onChanged();
       }
+      if (!other.getCloudFunction().isEmpty()) {
+        cloudFunction_ = other.cloudFunction_;
+        bitField0_ |= 0x00000008;
+        onChanged();
+      }
       this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
@@ -618,6 +732,12 @@ public Builder mergeFrom(
                 bitField0_ |= 0x00000004;
                 break;
               } // case 26
+            case 34:
+              {
+                cloudFunction_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 34
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -1139,6 +1259,222 @@ public Builder setFolderBytes(com.google.protobuf.ByteString value) {
       return this;
     }
 
+    private java.lang.Object cloudFunction_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The Cloud Function resource name. The Cloud Function needs to live inside
+     * consumer project and is accessible to Document AI Warehouse P4SA.
+     * Only Cloud Functions V2 is supported. Cloud function execution should
+     * complete within 5 minutes or this file ingestion may fail due to timeout.
+     * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+     * The following keys are available the request json payload.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * reference_id
+     * * document_schema_name
+     * * raw_document_path
+     * * raw_document_file_type
+     *
+     * The following keys from the cloud function json response payload will be
+     * ingested to the Document AI Warehouse as part of Document proto content
+     * and/or related information. The original values will be overridden if any
+     * key is present in the response.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * document_acl_policy
+     * * folder
+     * </pre>
+     *
+     * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The cloudFunction.
+     */
+    public java.lang.String getCloudFunction() {
+      java.lang.Object ref = cloudFunction_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        cloudFunction_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Cloud Function resource name. The Cloud Function needs to live inside
+     * consumer project and is accessible to Document AI Warehouse P4SA.
+     * Only Cloud Functions V2 is supported. Cloud function execution should
+     * complete within 5 minutes or this file ingestion may fail due to timeout.
+     * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+     * The following keys are available the request json payload.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * reference_id
+     * * document_schema_name
+     * * raw_document_path
+     * * raw_document_file_type
+     *
+     * The following keys from the cloud function json response payload will be
+     * ingested to the Document AI Warehouse as part of Document proto content
+     * and/or related information. The original values will be overridden if any
+     * key is present in the response.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * document_acl_policy
+     * * folder
+     * </pre>
+     *
+     * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for cloudFunction.
+     */
+    public com.google.protobuf.ByteString getCloudFunctionBytes() {
+      java.lang.Object ref = cloudFunction_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        cloudFunction_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Cloud Function resource name. The Cloud Function needs to live inside
+     * consumer project and is accessible to Document AI Warehouse P4SA.
+     * Only Cloud Functions V2 is supported. Cloud function execution should
+     * complete within 5 minutes or this file ingestion may fail due to timeout.
+     * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+     * The following keys are available the request json payload.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * reference_id
+     * * document_schema_name
+     * * raw_document_path
+     * * raw_document_file_type
+     *
+     * The following keys from the cloud function json response payload will be
+     * ingested to the Document AI Warehouse as part of Document proto content
+     * and/or related information. The original values will be overridden if any
+     * key is present in the response.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * document_acl_policy
+     * * folder
+     * </pre>
+     *
+     * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The cloudFunction to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCloudFunction(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      cloudFunction_ = value;
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Cloud Function resource name. The Cloud Function needs to live inside
+     * consumer project and is accessible to Document AI Warehouse P4SA.
+     * Only Cloud Functions V2 is supported. Cloud function execution should
+     * complete within 5 minutes or this file ingestion may fail due to timeout.
+     * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+     * The following keys are available the request json payload.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * reference_id
+     * * document_schema_name
+     * * raw_document_path
+     * * raw_document_file_type
+     *
+     * The following keys from the cloud function json response payload will be
+     * ingested to the Document AI Warehouse as part of Document proto content
+     * and/or related information. The original values will be overridden if any
+     * key is present in the response.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * document_acl_policy
+     * * folder
+     * </pre>
+     *
+     * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearCloudFunction() {
+      cloudFunction_ = getDefaultInstance().getCloudFunction();
+      bitField0_ = (bitField0_ & ~0x00000008);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The Cloud Function resource name. The Cloud Function needs to live inside
+     * consumer project and is accessible to Document AI Warehouse P4SA.
+     * Only Cloud Functions V2 is supported. Cloud function execution should
+     * complete within 5 minutes or this file ingestion may fail due to timeout.
+     * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+     * The following keys are available the request json payload.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * reference_id
+     * * document_schema_name
+     * * raw_document_path
+     * * raw_document_file_type
+     *
+     * The following keys from the cloud function json response payload will be
+     * ingested to the Document AI Warehouse as part of Document proto content
+     * and/or related information. The original values will be overridden if any
+     * key is present in the response.
+     * * display_name
+     * * properties
+     * * plain_text
+     * * document_acl_policy
+     * * folder
+     * </pre>
+     *
+     * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for cloudFunction to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCloudFunctionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      cloudFunction_ = value;
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfigOrBuilder.java b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfigOrBuilder.java
index 31814767d8fb..30192a3d7bb4 100644
--- a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfigOrBuilder.java
+++ b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/IngestPipelineConfigOrBuilder.java
@@ -149,4 +149,73 @@ public interface IngestPipelineConfigOrBuilder
    * @return The bytes for folder.
    */
   com.google.protobuf.ByteString getFolderBytes();
+
+  /**
+   *
+   *
+   * <pre>
+   * The Cloud Function resource name. The Cloud Function needs to live inside
+   * consumer project and is accessible to Document AI Warehouse P4SA.
+   * Only Cloud Functions V2 is supported. Cloud function execution should
+   * complete within 5 minutes or this file ingestion may fail due to timeout.
+   * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+   * The following keys are available the request json payload.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * reference_id
+   * * document_schema_name
+   * * raw_document_path
+   * * raw_document_file_type
+   *
+   * The following keys from the cloud function json response payload will be
+   * ingested to the Document AI Warehouse as part of Document proto content
+   * and/or related information. The original values will be overridden if any
+   * key is present in the response.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * document_acl_policy
+   * * folder
+   * </pre>
+   *
+   * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The cloudFunction.
+   */
+  java.lang.String getCloudFunction();
+  /**
+   *
+   *
+   * <pre>
+   * The Cloud Function resource name. The Cloud Function needs to live inside
+   * consumer project and is accessible to Document AI Warehouse P4SA.
+   * Only Cloud Functions V2 is supported. Cloud function execution should
+   * complete within 5 minutes or this file ingestion may fail due to timeout.
+   * Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+   * The following keys are available the request json payload.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * reference_id
+   * * document_schema_name
+   * * raw_document_path
+   * * raw_document_file_type
+   *
+   * The following keys from the cloud function json response payload will be
+   * ingested to the Document AI Warehouse as part of Document proto content
+   * and/or related information. The original values will be overridden if any
+   * key is present in the response.
+   * * display_name
+   * * properties
+   * * plain_text
+   * * document_acl_policy
+   * * folder
+   * </pre>
+   *
+   * <code>string cloud_function = 4 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for cloudFunction.
+   */
+  com.google.protobuf.ByteString getCloudFunctionBytes();
 }
diff --git a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/PipelinesProto.java b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/PipelinesProto.java
index e61fbd318215..ab55bc8fb500 100644
--- a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/PipelinesProto.java
+++ b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/java/com/google/cloud/contentwarehouse/v1/PipelinesProto.java
@@ -118,40 +118,44 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "s\030\002 \001(\0132\022.google.rpc.StatusB\023\n\021pipeline_"
           + "metadata\"S\n\rProcessorInfo\022\026\n\016processor_n"
           + "ame\030\001 \001(\t\022\025\n\rdocument_type\030\002 \001(\t\022\023\n\013sche"
-          + "ma_name\030\003 \001(\t\"\211\001\n\024IngestPipelineConfig\0222"
+          + "ma_name\030\003 \001(\t\"\323\001\n\024IngestPipelineConfig\0222"
           + "\n\023document_acl_policy\030\001 \001(\0132\025.google.iam"
           + ".v1.Policy\022\'\n\037enable_document_text_extra"
-          + "ction\030\002 \001(\010\022\024\n\006folder\030\003 \001(\tB\004\342A\001\001\"\314\001\n\021Gc"
-          + "sIngestPipeline\022\022\n\ninput_path\030\001 \001(\t\022\023\n\013s"
-          + "chema_name\030\002 \001(\t\022\026\n\016processor_type\030\003 \001(\t"
-          + "\022\037\n\027skip_ingested_documents\030\004 \001(\010\022U\n\017pip"
-          + "eline_config\030\005 \001(\01326.google.cloud.conten"
-          + "twarehouse.v1.IngestPipelineConfigB\004\342A\001\001"
-          + "\"\203\003\n$GcsIngestWithDocAiProcessorsPipelin"
-          + "e\022\022\n\ninput_path\030\001 \001(\t\022V\n\035split_classify_"
-          + "processor_info\030\002 \001(\0132/.google.cloud.cont"
-          + "entwarehouse.v1.ProcessorInfo\022P\n\027extract"
-          + "_processor_infos\030\003 \003(\0132/.google.cloud.co"
-          + "ntentwarehouse.v1.ProcessorInfo\022%\n\035proce"
-          + "ssor_results_folder_path\030\004 \001(\t\022\037\n\027skip_i"
-          + "ngested_documents\030\005 \001(\010\022U\n\017pipeline_conf"
-          + "ig\030\006 \001(\01326.google.cloud.contentwarehouse"
-          + ".v1.IngestPipelineConfigB\004\342A\001\001\"\200\001\n\023Expor"
-          + "tToCdwPipeline\022\021\n\tdocuments\030\001 \003(\t\022\032\n\022exp"
-          + "ort_folder_path\030\002 \001(\t\022\034\n\016doc_ai_dataset\030"
-          + "\003 \001(\tB\004\342A\001\001\022\034\n\024training_split_ratio\030\004 \001("
-          + "\002\"\271\001\n\030ProcessWithDocAiPipeline\022\021\n\tdocume"
-          + "nts\030\001 \003(\t\022\032\n\022export_folder_path\030\002 \001(\t\022G\n"
-          + "\016processor_info\030\003 \001(\0132/.google.cloud.con"
-          + "tentwarehouse.v1.ProcessorInfo\022%\n\035proces"
-          + "sor_results_folder_path\030\004 \001(\tB\366\001\n$com.go"
-          + "ogle.cloud.contentwarehouse.v1B\016Pipeline"
-          + "sProtoP\001ZPcloud.google.com/go/contentwar"
-          + "ehouse/apiv1/contentwarehousepb;contentw"
-          + "arehousepb\252\002 Google.Cloud.ContentWarehou"
-          + "se.V1\312\002 Google\\Cloud\\ContentWarehouse\\V1"
-          + "\352\002#Google::Cloud::ContentWarehouse::V1b\006"
-          + "proto3"
+          + "ction\030\002 \001(\010\022\024\n\006folder\030\003 \001(\tB\004\342A\001\001\022H\n\016clo"
+          + "ud_function\030\004 \001(\tB0\372A-\n+cloudfunctions.g"
+          + "oogleapis.com/CloudFunction\"\314\001\n\021GcsInges"
+          + "tPipeline\022\022\n\ninput_path\030\001 \001(\t\022\023\n\013schema_"
+          + "name\030\002 \001(\t\022\026\n\016processor_type\030\003 \001(\t\022\037\n\027sk"
+          + "ip_ingested_documents\030\004 \001(\010\022U\n\017pipeline_"
+          + "config\030\005 \001(\01326.google.cloud.contentwareh"
+          + "ouse.v1.IngestPipelineConfigB\004\342A\001\001\"\203\003\n$G"
+          + "csIngestWithDocAiProcessorsPipeline\022\022\n\ni"
+          + "nput_path\030\001 \001(\t\022V\n\035split_classify_proces"
+          + "sor_info\030\002 \001(\0132/.google.cloud.contentwar"
+          + "ehouse.v1.ProcessorInfo\022P\n\027extract_proce"
+          + "ssor_infos\030\003 \003(\0132/.google.cloud.contentw"
+          + "arehouse.v1.ProcessorInfo\022%\n\035processor_r"
+          + "esults_folder_path\030\004 \001(\t\022\037\n\027skip_ingeste"
+          + "d_documents\030\005 \001(\010\022U\n\017pipeline_config\030\006 \001"
+          + "(\01326.google.cloud.contentwarehouse.v1.In"
+          + "gestPipelineConfigB\004\342A\001\001\"\200\001\n\023ExportToCdw"
+          + "Pipeline\022\021\n\tdocuments\030\001 \003(\t\022\032\n\022export_fo"
+          + "lder_path\030\002 \001(\t\022\034\n\016doc_ai_dataset\030\003 \001(\tB"
+          + "\004\342A\001\001\022\034\n\024training_split_ratio\030\004 \001(\002\"\271\001\n\030"
+          + "ProcessWithDocAiPipeline\022\021\n\tdocuments\030\001 "
+          + "\003(\t\022\032\n\022export_folder_path\030\002 \001(\t\022G\n\016proce"
+          + "ssor_info\030\003 \001(\0132/.google.cloud.contentwa"
+          + "rehouse.v1.ProcessorInfo\022%\n\035processor_re"
+          + "sults_folder_path\030\004 \001(\tB\344\002\n$com.google.c"
+          + "loud.contentwarehouse.v1B\016PipelinesProto"
+          + "P\001ZPcloud.google.com/go/contentwarehouse"
+          + "/apiv1/contentwarehousepb;contentwarehou"
+          + "sepb\252\002 Google.Cloud.ContentWarehouse.V1\312"
+          + "\002 Google\\Cloud\\ContentWarehouse\\V1\352\002#Goo"
+          + "gle::Cloud::ContentWarehouse::V1\352Ak\n+clo"
+          + "udfunctions.googleapis.com/CloudFunction"
+          + "\022<projects/{project}/locations/{location"
+          + "}/functions/{function}b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -238,7 +242,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_contentwarehouse_v1_IngestPipelineConfig_descriptor,
             new java.lang.String[] {
-              "DocumentAclPolicy", "EnableDocumentTextExtraction", "Folder",
+              "DocumentAclPolicy", "EnableDocumentTextExtraction", "Folder", "CloudFunction",
             });
     internal_static_google_cloud_contentwarehouse_v1_GcsIngestPipeline_descriptor =
         getDescriptor().getMessageTypes().get(4);
@@ -280,6 +284,8 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
     registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.ResourceProto.resourceDefinition);
+    registry.add(com.google.api.ResourceProto.resourceReference);
     com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
         descriptor, registry);
     com.google.api.FieldBehaviorProto.getDescriptor();
diff --git a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/filters.proto b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/filters.proto
index ababb2821e75..cd490a9902fb 100644
--- a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/filters.proto
+++ b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/filters.proto
@@ -262,6 +262,9 @@ message FileTypeFilter {
 
     // Returns only non-folder documents.
     DOCUMENT = 3;
+
+    // Returns only root folders
+    ROOT_FOLDER = 4;
   }
 
   // The type of files to return.
diff --git a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/pipelines.proto b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/pipelines.proto
index 27b2d5e4ff6b..db34b5c6d628 100644
--- a/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/pipelines.proto
+++ b/java-contentwarehouse/proto-google-cloud-contentwarehouse-v1/src/main/proto/google/cloud/contentwarehouse/v1/pipelines.proto
@@ -29,6 +29,10 @@ option java_outer_classname = "PipelinesProto";
 option java_package = "com.google.cloud.contentwarehouse.v1";
 option php_namespace = "Google\\Cloud\\ContentWarehouse\\V1";
 option ruby_package = "Google::Cloud::ContentWarehouse::V1";
+option (google.api.resource_definition) = {
+  type: "cloudfunctions.googleapis.com/CloudFunction"
+  pattern: "projects/{project}/locations/{location}/functions/{function}"
+};
 
 // Response message of RunPipeline method.
 message RunPipelineResponse {}
@@ -146,6 +150,33 @@ message IngestPipelineConfig {
   // linked during ingestion process. Format is
   // `projects/{project}/locations/{location}/documents/{folder_id}`
   string folder = 3 [(google.api.field_behavior) = OPTIONAL];
+
+  // The Cloud Function resource name. The Cloud Function needs to live inside
+  // consumer project and is accessible to Document AI Warehouse P4SA.
+  // Only Cloud Functions V2 is supported. Cloud function execution should
+  // complete within 5 minutes or this file ingestion may fail due to timeout.
+  // Format: `https://{region}-{project_id}.cloudfunctions.net/{cloud_function}`
+  // The following keys are available the request json payload.
+  // * display_name
+  // * properties
+  // * plain_text
+  // * reference_id
+  // * document_schema_name
+  // * raw_document_path
+  // * raw_document_file_type
+  //
+  // The following keys from the cloud function json response payload will be
+  // ingested to the Document AI Warehouse as part of Document proto content
+  // and/or related information. The original values will be overridden if any
+  // key is present in the response.
+  // * display_name
+  // * properties
+  // * plain_text
+  // * document_acl_policy
+  // * folder
+  string cloud_function = 4 [(google.api.resource_reference) = {
+    type: "cloudfunctions.googleapis.com/CloudFunction"
+  }];
 }
 
 // The configuration of the Cloud Storage Ingestion pipeline.