diff --git a/aks/dfe_analytics/README.md b/aks/dfe_analytics/README.md
index 0cdc37e..be3c296 100644
--- a/aks/dfe_analytics/README.md
+++ b/aks/dfe_analytics/README.md
@@ -21,6 +21,8 @@ module "dfe_analytics" {
 }
 ```
 
+Note: this will create a new appender service account. The old service account AND the permission on the dataset must both be deleted manually afterwards.
+
 ### Create new dataset and events table
 Use for a new environment. To get the values for `gcp_taxonomy_id` and `gcp_policy_tag_id` see [Taxonomy and policy tag](#taxonomy-and-policy-tag).