diff --git a/src/Momento.Sdk/IPreviewVectorIndexClient.cs b/src/Momento.Sdk/IPreviewVectorIndexClient.cs
index 67aaf0ea..c2c0d955 100644
--- a/src/Momento.Sdk/IPreviewVectorIndexClient.cs
+++ b/src/Momento.Sdk/IPreviewVectorIndexClient.cs
@@ -148,7 +148,7 @@ public Task<UpsertItemBatchResponse> UpsertItemBatchAsync(string indexName,
     /// Gets a batch of items from a vector index by ID.
     /// </summary>
     /// <param name="indexName">The name of the vector index to get the items from.</param>
-    /// <param name="ids">The IDs of the items to get from the index.</param>
+    /// <param name="filter">The IDs of the items to get from the index.</param>
     /// <returns>
     /// Task representing the result of the get item batch operation. The
     /// response object is resolved to a type-safe object of one of
@@ -167,13 +167,13 @@ public Task<UpsertItemBatchResponse> UpsertItemBatchAsync(string indexName,
     /// }
     /// </code>
     /// </returns>
-    public Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnumerable<string> ids);
+    public Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnumerable<string> filter);
 
     /// <summary>
     /// Gets metadata for a batch of items from a vector index by ID.
     /// </summary>
     /// <param name="indexName">The name of the vector index to get the item metadata from.</param>
-    /// <param name="ids">The IDs of the item metadata to get from the index.</param>
+    /// <param name="filter">The IDs of the item metadata to get from the index.</param>
     /// <returns>
     /// Task representing the result of the get item metadata batch operation. The
     /// response object is resolved to a type-safe object of one of
@@ -192,13 +192,13 @@ public Task<UpsertItemBatchResponse> UpsertItemBatchAsync(string indexName,
     /// }
     /// </code>
     /// </returns>
-    public Task<GetItemMetadataBatchResponse> GetItemMetadataBatchAsync(string indexName, IEnumerable<string> ids);
+    public Task<GetItemMetadataBatchResponse> GetItemMetadataBatchAsync(string indexName, IEnumerable<string> filter);
 
     /// <summary>
     /// Deletes all items with the given IDs from the index. Returns success if for items that do not exist.
     /// </summary>
     /// <param name="indexName">The name of the vector index to delete the items from.</param>
-    /// <param name="ids">The IDs of the items to delete from the index.</param>
+    /// <param name="filter">The IDs of the items to delete from the index.</param>
     /// <returns>
     /// Task representing the result of the upsert operation. The
     /// response object is resolved to a type-safe object of one of
@@ -216,7 +216,7 @@ public Task<UpsertItemBatchResponse> UpsertItemBatchAsync(string indexName,
     /// }
     /// </code>
     ///</returns>
-    public Task<DeleteItemBatchResponse> DeleteItemBatchAsync(string indexName, IEnumerable<string> ids);
+    public Task<DeleteItemBatchResponse> DeleteItemBatchAsync(string indexName, IEnumerable<string> filter);
 
     ///  <summary>
     ///  Searches for the most similar vectors to the query vector in the index.
diff --git a/src/Momento.Sdk/Internal/VectorIndexDataClient.cs b/src/Momento.Sdk/Internal/VectorIndexDataClient.cs
index 423f0692..4b20f9d5 100644
--- a/src/Momento.Sdk/Internal/VectorIndexDataClient.cs
+++ b/src/Momento.Sdk/Internal/VectorIndexDataClient.cs
@@ -74,7 +74,7 @@ public async Task<UpsertItemBatchResponse> UpsertItemBatchAsync(string indexName
     }
 
     const string REQUEST_GET_ITEM_BATCH = "GET_ITEM_BATCH";
-    public async Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnumerable<string> ids)
+    public async Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnumerable<string> filter)
     {
         try
         {
@@ -83,7 +83,7 @@ public async Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnu
             var request = new _GetItemBatchRequest()
             {
                 IndexName = indexName,
-                Filter = idsToFilterExpression(ids),
+                Filter = idsToFilterExpression(filter),
                 MetadataFields = new _MetadataRequest { All = new _MetadataRequest.Types.All() }
             };
 
@@ -102,7 +102,7 @@ public async Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnu
     }
 
     const string REQUEST_GET_ITEM_METADATA_BATCH = "GET_ITEM_METADATA_BATCH";
-    public async Task<GetItemMetadataBatchResponse> GetItemMetadataBatchAsync(string indexName, IEnumerable<string> ids)
+    public async Task<GetItemMetadataBatchResponse> GetItemMetadataBatchAsync(string indexName, IEnumerable<string> filter)
     {
         try
         {
@@ -111,7 +111,7 @@ public async Task<GetItemMetadataBatchResponse> GetItemMetadataBatchAsync(string
             var request = new _GetItemMetadataBatchRequest()
             {
                 IndexName = indexName,
-                Filter = idsToFilterExpression(ids),
+                Filter = idsToFilterExpression(filter),
                 MetadataFields = new _MetadataRequest { All = new _MetadataRequest.Types.All() }
             };
 
@@ -147,13 +147,13 @@ private static _FilterExpression idsToFilterExpression(IEnumerable<string> ids)
     }
 
     const string REQUEST_DELETE_ITEM_BATCH = "DELETE_ITEM_BATCH";
-    public async Task<DeleteItemBatchResponse> DeleteItemBatchAsync(string indexName, IEnumerable<string> ids)
+    public async Task<DeleteItemBatchResponse> DeleteItemBatchAsync(string indexName, IEnumerable<string> filter)
     {
         try
         {
             _logger.LogTraceVectorIndexRequest(REQUEST_DELETE_ITEM_BATCH, indexName);
             CheckValidIndexName(indexName);
-            var request = new _DeleteItemBatchRequest() { IndexName = indexName, Filter = idsToFilterExpression(ids) };
+            var request = new _DeleteItemBatchRequest() { IndexName = indexName, Filter = idsToFilterExpression(filter) };
 
             await grpcManager.Client.DeleteItemBatchAsync(request, new CallOptions(deadline: CalculateDeadline()));
             return _logger.LogTraceVectorIndexRequestSuccess(REQUEST_DELETE_ITEM_BATCH, indexName,
diff --git a/src/Momento.Sdk/PreviewVectorIndexClient.cs b/src/Momento.Sdk/PreviewVectorIndexClient.cs
index 8adaea83..d0fd462b 100644
--- a/src/Momento.Sdk/PreviewVectorIndexClient.cs
+++ b/src/Momento.Sdk/PreviewVectorIndexClient.cs
@@ -69,21 +69,21 @@ public async Task<UpsertItemBatchResponse> UpsertItemBatchAsync(string indexName
     }
 
     /// <inheritdoc />
-    public async Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnumerable<string> ids)
+    public async Task<GetItemBatchResponse> GetItemBatchAsync(string indexName, IEnumerable<string> filter)
     {
-        return await dataClient.GetItemBatchAsync(indexName, ids);
+        return await dataClient.GetItemBatchAsync(indexName, filter);
     }
 
     /// <inheritdoc />
-    public async Task<GetItemMetadataBatchResponse> GetItemMetadataBatchAsync(string indexName, IEnumerable<string> ids)
+    public async Task<GetItemMetadataBatchResponse> GetItemMetadataBatchAsync(string indexName, IEnumerable<string> filter)
     {
-        return await dataClient.GetItemMetadataBatchAsync(indexName, ids);
+        return await dataClient.GetItemMetadataBatchAsync(indexName, filter);
     }
 
     /// <inheritdoc />
-    public async Task<DeleteItemBatchResponse> DeleteItemBatchAsync(string indexName, IEnumerable<string> ids)
+    public async Task<DeleteItemBatchResponse> DeleteItemBatchAsync(string indexName, IEnumerable<string> filter)
     {
-        return await dataClient.DeleteItemBatchAsync(indexName, ids);
+        return await dataClient.DeleteItemBatchAsync(indexName, filter);
     }
 
     /// <inheritdoc />