diff --git a/content/influxdb/cloud-serverless/_index.md b/content/influxdb/cloud-serverless/_index.md
index 2149d7656d..d0f46bfabe 100644
--- a/content/influxdb/cloud-serverless/_index.md
+++ b/content/influxdb/cloud-serverless/_index.md
@@ -23,13 +23,23 @@ find the **InfluxDB Cloud powered by** link in your
 [InfluxDB Cloud organization homepage](https://cloud2.influxdata.com) version information.
 If your organization is using InfluxDB v3, you'll see
 **InfluxDB Cloud Serverless** followed by the version number.
+{{% /note %}}
 
+{{% warn %}}
 #### InfluxDB v3 and Flux
 
 InfluxDB Cloud Serverless and other InfluxDB v3 products do not support Flux.
 Flux is now in maintenance mode. For more information, see
 [The future of Flux](/flux/v0/future-of-flux).
-{{% /note %}}
+
+#### Custom partitioning not supported
+
+InfluxDB Cloud Serverless does not support custom partitioning.
+
+Custom partitioning can benefit queries that look for a specific tag value in the `WHERE` clause.
+To use custom partitioning, consider [InfluxDB Cloud Dedicated](/influxdb/cloud-dedicated/admin/custom-partitions/)
+or [InfluxDB Clustered](/influxdb/clustered/admin/custom-partitions/).
+{{% /warn %}}
 
 InfluxDB Cloud Serverless is a hosted and managed version of InfluxDB backed
 by InfluxDB 3.0, the time series platform designed to handle high write and query loads.