diff --git a/AerospikeClient/Async/AsyncClient.cs b/AerospikeClient/Async/AsyncClient.cs
index e1647a5b..ce6e4db9 100644
--- a/AerospikeClient/Async/AsyncClient.cs
+++ b/AerospikeClient/Async/AsyncClient.cs
@@ -1,5 +1,5 @@
 /* 
- * Copyright 2012-2024 Aerospike, Inc.
+ * Copyright 2012-2025 Aerospike, Inc.
  *
  * Portions may be licensed to Aerospike, Inc. under one or more contributor
  * license agreements.
@@ -183,8 +183,7 @@ public void Commit(CommitListener listener, Txn txn)
 					break;
 
 				case Txn.TxnState.ABORTED:
-					listener.OnSuccess(CommitStatus.CommitStatusType.ALREADY_ABORTED);
-					break;
+					throw new AerospikeException(ResultCode.TXN_ALREADY_ABORTED, "Transaction already aborted");
 
 			}
 		}
@@ -227,8 +226,7 @@ public void Abort(AbortListener listener, Txn txn)
 					break;
 
 				case Txn.TxnState.COMMITTED:
-					listener.OnSuccess(AbortStatus.AbortStatusType.ALREADY_COMMITTED);
-					break;
+					throw new AerospikeException(ResultCode.TXN_ALREADY_COMMITTED, "Transaction already committed");
 
 				case Txn.TxnState.ABORTED:
 					listener.OnSuccess(AbortStatus.AbortStatusType.ALREADY_ABORTED);
diff --git a/AerospikeClient/Main/AbortStatus.cs b/AerospikeClient/Main/AbortStatus.cs
index 94f2dee2..41bbb4db 100644
--- a/AerospikeClient/Main/AbortStatus.cs
+++ b/AerospikeClient/Main/AbortStatus.cs
@@ -1,5 +1,5 @@
 /* 
- * Copyright 2012-2024 Aerospike, Inc.
+ * Copyright 2012-2025 Aerospike, Inc.
  *
  * Portions may be licensed to Aerospike, Inc. under one or more contributor
  * license agreements.
@@ -25,7 +25,6 @@ public static class AbortStatus
 		public enum AbortStatusType
 		{
 			OK,
-			ALREADY_COMMITTED,
 			ALREADY_ABORTED,
 			ROLL_BACK_ABANDONED,
 			CLOSE_ABANDONED
@@ -36,7 +35,6 @@ public static string AbortErrorToString(AbortStatusType status)
 			return status switch
 			{
 				AbortStatusType.OK => "Abort succeeded.",
-				AbortStatusType.ALREADY_COMMITTED => "Already committed.",
 				AbortStatusType.ALREADY_ABORTED => "Already aborted.",
 				AbortStatusType.ROLL_BACK_ABANDONED => "MRT client roll back abandoned. Server will eventually abort the MRT.",
 				AbortStatusType.CLOSE_ABANDONED => "MRT has been rolled back, but MRT client close was abandoned. Server will eventually close the MRT.",
diff --git a/AerospikeClient/Main/AerospikeClient.cs b/AerospikeClient/Main/AerospikeClient.cs
index a91de549..678b8201 100644
--- a/AerospikeClient/Main/AerospikeClient.cs
+++ b/AerospikeClient/Main/AerospikeClient.cs
@@ -1,5 +1,5 @@
 /* 
- * Copyright 2012-2024 Aerospike, Inc.
+ * Copyright 2012-2025 Aerospike, Inc.
  *
  * Portions may be licensed to Aerospike, Inc. under one or more contributor
  * license agreements.
@@ -516,7 +516,7 @@ public CommitStatus.CommitStatusType Commit(Txn txn)
 					return CommitStatus.CommitStatusType.ALREADY_COMMITTED;
 				
 				case Txn.TxnState.ABORTED:
-					return CommitStatus.CommitStatusType.ALREADY_ABORTED;
+					throw new AerospikeException(ResultCode.TXN_ALREADY_ABORTED, "Transaction already aborted");
 			}
 		}
 
@@ -540,8 +540,8 @@ public AbortStatus.AbortStatusType Abort(Txn txn)
 					return tr.Abort(txnRollPolicyDefault);
 
 				case Txn.TxnState.COMMITTED:
-					return AbortStatus.AbortStatusType.ALREADY_COMMITTED;
-				
+					throw new AerospikeException(ResultCode.TXN_ALREADY_COMMITTED, "Transaction already committed");
+
 				case Txn.TxnState.ABORTED:
 					return AbortStatus.AbortStatusType.ALREADY_ABORTED;
 			}
diff --git a/AerospikeClient/Main/CommitStatus.cs b/AerospikeClient/Main/CommitStatus.cs
index 50c9a7d2..1386b303 100644
--- a/AerospikeClient/Main/CommitStatus.cs
+++ b/AerospikeClient/Main/CommitStatus.cs
@@ -1,5 +1,5 @@
 /* 
- * Copyright 2012-2024 Aerospike, Inc.
+ * Copyright 2012-2025 Aerospike, Inc.
  *
  * Portions may be licensed to Aerospike, Inc. under one or more contributor
  * license agreements.
@@ -28,7 +28,6 @@ public enum CommitStatusType
 		{
 			OK,
 			ALREADY_COMMITTED,
-			ALREADY_ABORTED,
 			ROLL_FORWARD_ABANDONED,
 			CLOSE_ABANDONED
 		}
@@ -39,7 +38,6 @@ public static string CommitErrorToString(CommitStatusType status)
 			{
 				CommitStatusType.OK => "Commit succeeded.",
 				CommitStatusType.ALREADY_COMMITTED => "Already committed.",
-				CommitStatusType.ALREADY_ABORTED => "Already aborted.",
 				CommitStatusType.ROLL_FORWARD_ABANDONED => "MRT client roll forward abandoned. Server will eventually commit the MRT.",
 				CommitStatusType.CLOSE_ABANDONED => "MRT has been rolled forward, but MRT client close was abandoned. Server will eventually close the MRT.",
 				_ => "Unexpected AbortStatusType."
diff --git a/AerospikeClient/Main/ResultCode.cs b/AerospikeClient/Main/ResultCode.cs
index 9e701fb6..65b6924e 100644
--- a/AerospikeClient/Main/ResultCode.cs
+++ b/AerospikeClient/Main/ResultCode.cs
@@ -1,5 +1,5 @@
 /* 
- * Copyright 2012-2024 Aerospike, Inc.
+ * Copyright 2012-2025 Aerospike, Inc.
  *
  * Portions may be licensed to Aerospike, Inc. under one or more contributor
  * license agreements.
@@ -22,7 +22,19 @@ namespace Aerospike.Client
 	/// Database operation error codes.
 	/// </summary>
 	public sealed class ResultCode
-	{
+	{
+		/// <summary>
+		/// Multi-record transaction commit called, but the transaction was already aborted.
+		/// Value: -19
+		/// </summary>
+		public const int TXN_ALREADY_ABORTED = -19;
+
+		/// <summary>
+		/// Multi-record transaction abort called, but the transaction was already committed.
+		/// Value: -18
+		/// </summary>
+		public const int TXN_ALREADY_COMMITTED = -18;
+
 		/// <summary>
 		/// Multi-record transaction failed.
 		/// Value: -17
@@ -592,7 +604,13 @@ public static bool KeepConnection(int resultCode)
 		public static string GetResultString(int resultCode)
 		{
 			switch (resultCode)
-			{
+			{
+			case TXN_ALREADY_ABORTED:
+				return "Multi-record transaction already aborted";
+
+			case TXN_ALREADY_COMMITTED:
+				return "Multi-record transaction already committed";
+
 			case TXN_FAILED:
 				return "Multi-record transaction failed";
 
diff --git a/AerospikeTest/Async/TestAsyncTxn.cs b/AerospikeTest/Async/TestAsyncTxn.cs
index 6d4fb21d..f29e35a2 100644
--- a/AerospikeTest/Async/TestAsyncTxn.cs
+++ b/AerospikeTest/Async/TestAsyncTxn.cs
@@ -357,7 +357,7 @@ public void AsyncTxnWriteCommitAbort()
 				new Put(txn, key, "val2"),
 				new Commit(txn),
 				new GetExpect(null, key, "val2"),
-				new Abort(txn, AbortStatus.AbortStatusType.ALREADY_COMMITTED)
+				new Abort(txn, ResultCode.TXN_ALREADY_COMMITTED)
 			};
 
 			Execute(cmds);
@@ -578,6 +578,7 @@ public class Abort : Runner
 		{
 			private readonly Txn txn;
 			private readonly AbortStatusType status;
+			private readonly int resultCode = 0;
 
 			public Abort(Txn txn) 
 			{
@@ -591,9 +592,22 @@ public Abort(Txn txn, AbortStatusType abortStatus)
 				this.status = abortStatus;
 			}
 
+			public Abort(Txn txn, int resultCode)
+			{
+				this.txn = txn;
+				this.resultCode = resultCode;
+			}
+
 			public void Run(TestAsyncTxn parent, Listener listener) 
 			{
-				client.Abort(new AbortHandler(listener, status), txn);
+				try
+				{
+					client.Abort(new AbortHandler(listener, status), txn);
+				}
+				catch (Exception e)
+				{
+					parent.OnError(e, resultCode);
+				}
 			}
 			
 			private class AbortHandler : AbortListener
diff --git a/AerospikeTest/Sync/Basic/TestTxn.cs b/AerospikeTest/Sync/Basic/TestTxn.cs
index e02d3cb0..c9f625d1 100644
--- a/AerospikeTest/Sync/Basic/TestTxn.cs
+++ b/AerospikeTest/Sync/Basic/TestTxn.cs
@@ -498,8 +498,17 @@ public void TxnWriteCommitAbort()
 			record = client.Get(null, key);
 			AssertBinEqual(key, record, binName, "val2");
 
-			var abortStatus = client.Abort(txn);
-			Assert.AreEqual(AbortStatus.AbortStatusType.ALREADY_COMMITTED, abortStatus);
+			try
+			{
+				var abortStatus = client.Abort(txn);
+			}
+			catch (AerospikeException ae)
+			{
+				if (ae.Result != ResultCode.TXN_ALREADY_COMMITTED)
+				{
+					throw;
+				}
+			}
 		}
 
 		[TestMethod]