diff --git a/shotover-proxy/tests/runner/observability_int_tests.rs b/shotover-proxy/tests/runner/observability_int_tests.rs
index c1f4a0696..f95541c9a 100644
--- a/shotover-proxy/tests/runner/observability_int_tests.rs
+++ b/shotover-proxy/tests/runner/observability_int_tests.rs
@@ -13,6 +13,7 @@ async fn test_metrics() {
     let expected = r#"
 # TYPE shotover_available_connections_count gauge
 # TYPE shotover_chain_failures_count counter
+# TYPE shotover_chain_messages_per_batch_count summary
 # TYPE shotover_chain_requests_batch_size summary
 # TYPE shotover_chain_responses_batch_size summary
 # TYPE shotover_chain_total_count counter
@@ -23,6 +24,16 @@ async fn test_metrics() {
 # TYPE shotover_transform_total_count counter
 shotover_available_connections_count{source="redis"}
 shotover_chain_failures_count{chain="redis"}
+shotover_chain_messages_per_batch_count_count{chain="redis"}
+shotover_chain_messages_per_batch_count_sum{chain="redis"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="0"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="0.1"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="0.5"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="0.9"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="0.95"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="0.99"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="0.999"}
+shotover_chain_messages_per_batch_count{chain="redis",quantile="1"}
 shotover_chain_requests_batch_size_count{chain="redis"}
 shotover_chain_requests_batch_size_sum{chain="redis"}
 shotover_chain_requests_batch_size{chain="redis",quantile="0"}
diff --git a/shotover/src/transforms/chain.rs b/shotover/src/transforms/chain.rs
index 2dfd5db34..35a9b2e91 100644
--- a/shotover/src/transforms/chain.rs
+++ b/shotover/src/transforms/chain.rs
@@ -246,6 +246,9 @@ impl TransformChainBuilder {
             }
         ).collect();
 
+        // This is deprecated but give users some time to migrate to the requests/responses versions that have replaced this metric
+        histogram!("shotover_chain_messages_per_batch_count", "chain" => name).record(0);
+
         let chain_requests_batch_size =
             histogram!("shotover_chain_requests_batch_size", "chain" => name);
         let chain_responses_batch_size =