diff --git a/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/Solace.java b/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/Solace.java
index 72571f311b29b..ad3c01b72ccf1 100644
--- a/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/Solace.java
+++ b/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/Solace.java
@@ -155,8 +155,12 @@ public abstract static class Record {
     @SchemaFieldNumber("11")
     public abstract @Nullable String getReplicationGroupMessageId();
 
+    @SuppressWarnings("mutable")
+    @SchemaFieldNumber("12")
+    public abstract byte[] getAttachmentBytes();
+
     public static Builder builder() {
-      return new AutoValue_Solace_Record.Builder();
+      return new AutoValue_Solace_Record.Builder().setAttachmentBytes(new byte[0]);
     }
 
     @AutoValue.Builder
@@ -186,6 +190,8 @@ public abstract static class Builder {
       public abstract Builder setReplicationGroupMessageId(
           @Nullable String replicationGroupMessageId);
 
+      public abstract Builder setAttachmentBytes(byte[] attachmentBytes);
+
       public abstract Record build();
     }
   }
@@ -198,21 +204,22 @@ public static class SolaceRecordMapper {
         return null;
       }
 
-      ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+      ByteArrayOutputStream payloadBytesStream = new ByteArrayOutputStream();
       if (msg.getContentLength() != 0) {
         try {
-          outputStream.write(msg.getBytes());
+          payloadBytesStream.write(msg.getBytes());
         } catch (IOException e) {
-          LOG.error("Could not write Bytes from the BytesXMLMessage to the Solace.record.", e);
+          LOG.error("Could not write bytes from the BytesXMLMessage to the Solace.record.", e);
         }
       }
+
+      ByteArrayOutputStream attachmentBytesStream = new ByteArrayOutputStream();
       if (msg.getAttachmentContentLength() != 0) {
         try {
-          outputStream.write(msg.getAttachmentByteBuffer().array());
+          attachmentBytesStream.write(msg.getAttachmentByteBuffer().array());
         } catch (IOException e) {
           LOG.error(
-              "Could not AttachmentByteBuffer from the BytesXMLMessage to the" + " Solace.record.",
-              e);
+              "Could not AttachmentByteBuffer from the BytesXMLMessage to the Solace.record.", e);
         }
       }
 
@@ -227,7 +234,7 @@ public static class SolaceRecordMapper {
         destBuilder.setType(DestinationType.QUEUE);
       } else {
         LOG.error(
-            "SolaceIO: Unknown destination type for message {}, assuming that {} is a" + " topic",
+            "SolaceIO: Unknown destination type for message {}, assuming that {} is a topic",
             msg.getCorrelationId(),
             originalDestination.getName());
         destBuilder.setType(DestinationType.TOPIC);
@@ -248,7 +255,8 @@ public static class SolaceRecordMapper {
               msg.getReplicationGroupMessageId() != null
                   ? msg.getReplicationGroupMessageId().toString()
                   : null)
-          .setPayload(outputStream.toByteArray())
+          .setPayload(payloadBytesStream.toByteArray())
+          .setAttachmentBytes(attachmentBytesStream.toByteArray())
           .build();
     }
   }
diff --git a/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/SolaceRecordCoder.java b/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/SolaceRecordCoder.java
index fcad3b77a0bca..319ec78295340 100644
--- a/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/SolaceRecordCoder.java
+++ b/sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/data/SolaceRecordCoder.java
@@ -69,6 +69,7 @@ public void encode(Record value, @NonNull OutputStream outStream) throws IOExcep
     LONG_CODER.encode(value.getSenderTimestamp(), outStream);
     LONG_CODER.encode(value.getSequenceNumber(), outStream);
     LONG_CODER.encode(value.getTimeToLive(), outStream);
+    BYTE_CODER.encode(value.getAttachmentBytes(), outStream);
   }
 
   @Override
@@ -100,6 +101,7 @@ public Record decode(InputStream inStream) throws IOException {
         .setSenderTimestamp(LONG_CODER.decode(inStream))
         .setSequenceNumber(LONG_CODER.decode(inStream))
         .setTimeToLive(LONG_CODER.decode(inStream))
+        .setAttachmentBytes(BYTE_CODER.decode(inStream))
         .build();
   }
 }
diff --git a/sdks/java/io/solace/src/test/java/org/apache/beam/sdk/io/solace/data/SolaceTest.java b/sdks/java/io/solace/src/test/java/org/apache/beam/sdk/io/solace/data/SolaceTest.java
index 47b065be98a01..2972ddc15cbd5 100644
--- a/sdks/java/io/solace/src/test/java/org/apache/beam/sdk/io/solace/data/SolaceTest.java
+++ b/sdks/java/io/solace/src/test/java/org/apache/beam/sdk/io/solace/data/SolaceTest.java
@@ -18,14 +18,12 @@
 package org.apache.beam.sdk.io.solace.data;
 
 import java.nio.charset.StandardCharsets;
-import java.util.Map;
 import org.apache.beam.sdk.io.solace.data.Solace.Destination;
 import org.junit.Assert;
 import org.junit.Test;
 
 public class SolaceTest {
 
-  Map<String, Object> properties;
   Destination destination =
       Solace.Destination.builder()
           .setName("some destination")
@@ -42,6 +40,8 @@ public class SolaceTest {
   Long timeToLive = 34567890L;
   String payloadString = "some payload";
   byte[] payload = payloadString.getBytes(StandardCharsets.UTF_8);
+  String attachmentString = "some attachment";
+  byte[] attachment = attachmentString.getBytes(StandardCharsets.UTF_8);
 
   @Test
   public void testRecordEquality() {
@@ -58,6 +58,7 @@ public void testRecordEquality() {
             .setSequenceNumber(sequenceNumber)
             .setTimeToLive(timeToLive)
             .setPayload(payload)
+            .setAttachmentBytes(attachment)
             .build();
 
     Solace.Record obj2 =
@@ -73,6 +74,7 @@ public void testRecordEquality() {
             .setSequenceNumber(sequenceNumber)
             .setTimeToLive(timeToLive)
             .setPayload(payload)
+            .setAttachmentBytes(attachment)
             .build();
 
     Solace.Record obj3 =
@@ -88,6 +90,7 @@ public void testRecordEquality() {
             .setSequenceNumber(sequenceNumber)
             .setTimeToLive(timeToLive)
             .setPayload(payload)
+            .setAttachmentBytes(attachment)
             .build();
 
     Assert.assertEquals(obj1, obj2);
@@ -104,6 +107,8 @@ public void testRecordEquality() {
     Assert.assertEquals(obj1.getSequenceNumber(), sequenceNumber);
     Assert.assertEquals(obj1.getTimeToLive(), timeToLive);
     Assert.assertEquals(new String(obj1.getPayload(), StandardCharsets.UTF_8), payloadString);
+    Assert.assertEquals(
+        new String(obj1.getAttachmentBytes(), StandardCharsets.UTF_8), attachmentString);
   }
 
   @Test
@@ -120,6 +125,7 @@ public void testRecordNullability() {
     Assert.assertNull(obj.getSenderTimestamp());
     Assert.assertNull(obj.getSequenceNumber());
     Assert.assertNull(obj.getTimeToLive());
+    Assert.assertArrayEquals(obj.getAttachmentBytes(), new byte[0]);
     Assert.assertEquals(new String(obj.getPayload(), StandardCharsets.UTF_8), payloadString);
   }