diff --git a/modules/customization-public-config.adoc b/modules/customization-public-config.adoc
index ef988fbc05d..c962fdfd180 100644
--- a/modules/customization-public-config.adoc
+++ b/modules/customization-public-config.adoc
@@ -121,6 +121,11 @@ Use these parameters to specify additional attributes for all objects that {prod
 
 |===
 
+[NOTE]
+====
+The `customize.other` parameter is available only for Helm chart installations. It is not supported in the Operator custom resource.
+====
+
 You can also use:
 
 * the `customize.other.service/\*.labels` and the `customize.other.service/*.annotations` parameters, to specify labels and annotations for all objects.