diff --git a/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/AvroSortedBucketIO.java b/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/AvroSortedBucketIO.java
index f81b12c681..35b0136f3f 100644
--- a/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/AvroSortedBucketIO.java
+++ b/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/AvroSortedBucketIO.java
@@ -249,6 +249,11 @@ public Read<T> from(List<String> inputDirectories) {
       return toBuilder().setInputDirectories(inputDirectories).build();
     }
 
+    /** Specifies the avro {@link AvroDatumFactory} for reading. */
+    public Read<T> withDatumFactory(AvroDatumFactory<T> datumFactory) {
+      return toBuilder().setDatumFactory(datumFactory).build();
+    }
+
     /** Specifies the input filename suffix. */
     public Read<T> withSuffix(String filenameSuffix) {
       return toBuilder().setFilenameSuffix(filenameSuffix).build();
@@ -345,6 +350,18 @@ abstract static class Builder<K1, K2, T extends IndexedRecord> {
       abstract Write<K1, K2, T> build();
     }
 
+    /** Writes to the given output directory. */
+    public Write<K1, K2, T> to(String outputDirectory) {
+      return toBuilder()
+          .setOutputDirectory(FileSystems.matchNewResource(outputDirectory, true))
+          .build();
+    }
+
+    /** Specifies the avro {@link AvroDatumFactory} for writing. */
+    public Write<K1, K2, T> withDatumFactory(AvroDatumFactory<T> datumFactory) {
+      return toBuilder().setDatumFactory(datumFactory).build();
+    }
+
     /** Specifies the number of buckets for partitioning. */
     public Write<K1, K2, T> withNumBuckets(int numBuckets) {
       return toBuilder().setNumBuckets(numBuckets).build();
@@ -365,13 +382,6 @@ public Write<K1, K2, T> withMetadata(Map<String, Object> metadata) {
       return toBuilder().setMetadata(metadata).build();
     }
 
-    /** Writes to the given output directory. */
-    public Write<K1, K2, T> to(String outputDirectory) {
-      return toBuilder()
-          .setOutputDirectory(FileSystems.matchNewResource(outputDirectory, true))
-          .build();
-    }
-
     /** Specifies the temporary directory for writing. Defaults to --tempLocation if not set. */
     public Write<K1, K2, T> withTempDirectory(String tempDirectory) {
       return toBuilder()
@@ -379,6 +389,31 @@ public Write<K1, K2, T> withTempDirectory(String tempDirectory) {
           .build();
     }
 
+    /** Specifies the output filename suffix. */
+    public Write<K1, K2, T> withSuffix(String filenameSuffix) {
+      return toBuilder().setFilenameSuffix(filenameSuffix).build();
+    }
+
+    /** Specifies the output filename prefix (i.e. "bucket" or "part"). */
+    public Write<K1, K2, T> withFilenamePrefix(String filenamePrefix) {
+      return toBuilder().setFilenamePrefix(filenamePrefix).build();
+    }
+
+    /** Specifies the sorter memory in MB. */
+    public Write<K1, K2, T> withSorterMemoryMb(int sorterMemoryMb) {
+      return toBuilder().setSorterMemoryMb(sorterMemoryMb).build();
+    }
+
+    /** Specifies the size of an optional key-to-hash cache in the ExtractKeys transform. */
+    public Write<K1, K2, T> withKeyCacheOfSize(int keyCacheSize) {
+      return toBuilder().setKeyCacheSize(keyCacheSize).build();
+    }
+
+    /** Specifies the output file {@link CodecFactory}. */
+    public Write<K1, K2, T> withCodec(CodecFactory codec) {
+      return toBuilder().setCodec(codec).build();
+    }
+
     @SuppressWarnings("unchecked")
     @Override
     public FileOperations<T> getFileOperations() {
@@ -405,31 +440,6 @@ BucketMetadata<K1, K2, T> getBucketMetadata() {
         throw new IllegalStateException(e);
       }
     }
-
-    /** Specifies the output filename suffix. */
-    public Write<K1, K2, T> withSuffix(String filenameSuffix) {
-      return toBuilder().setFilenameSuffix(filenameSuffix).build();
-    }
-
-    /** Specifies the output filename prefix (i.e. "bucket" or "part"). */
-    public Write<K1, K2, T> withFilenamePrefix(String filenamePrefix) {
-      return toBuilder().setFilenamePrefix(filenamePrefix).build();
-    }
-
-    /** Specifies the sorter memory in MB. */
-    public Write<K1, K2, T> withSorterMemoryMb(int sorterMemoryMb) {
-      return toBuilder().setSorterMemoryMb(sorterMemoryMb).build();
-    }
-
-    /** Specifies the size of an optional key-to-hash cache in the ExtractKeys transform. */
-    public Write<K1, K2, T> withKeyCacheOfSize(int keyCacheSize) {
-      return toBuilder().setKeyCacheSize(keyCacheSize).build();
-    }
-
-    /** Specifies the output file {@link CodecFactory}. */
-    public Write<K1, K2, T> withCodec(CodecFactory codec) {
-      return toBuilder().setCodec(codec).build();
-    }
   }
 
   ////////////////////////////////////////////////////////////////////////////////
@@ -491,6 +501,11 @@ public TransformOutput<K1, K2, T> to(String outputDirectory) {
           .build();
     }
 
+    /** Specifies the avro {@link AvroDatumFactory} for reading and writing. */
+    public TransformOutput<K1, K2, T> withDatumFactory(AvroDatumFactory<T> datumFactory) {
+      return toBuilder().setDatumFactory(datumFactory).build();
+    }
+
     /** Specifies the temporary directory for writing. Defaults to --tempLocation if not set. */
     public TransformOutput<K1, K2, T> withTempDirectory(String tempDirectory) {
       return toBuilder()
diff --git a/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/BucketMetadata.java b/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/BucketMetadata.java
index 6907c7d33a..6371284cae 100644
--- a/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/BucketMetadata.java
+++ b/scio-smb/src/main/java/org/apache/beam/sdk/extensions/smb/BucketMetadata.java
@@ -51,10 +51,10 @@
 import org.apache.beam.sdk.transforms.display.DisplayData.Builder;
 import org.apache.beam.sdk.transforms.display.HasDisplayData;
 import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Preconditions;
-import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.hash.HashFunction;
-import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.hash.Hashing;
 import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Supplier;
 import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Suppliers;
+import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.hash.HashFunction;
+import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.hash.Hashing;
 
 /**
  * Represents metadata in a JSON-serializable format to be stored alongside sorted-bucket files in a