diff --git a/docs/en/ingest-management/elastic-agent/configuration/outputs/output-logstash.asciidoc b/docs/en/ingest-management/elastic-agent/configuration/outputs/output-logstash.asciidoc
index 71dc07094..6514dcd99 100644
--- a/docs/en/ingest-management/elastic-agent/configuration/outputs/output-logstash.asciidoc
+++ b/docs/en/ingest-management/elastic-agent/configuration/outputs/output-logstash.asciidoc
@@ -32,6 +32,11 @@ To receive the events in {ls}, you also need to create a {ls} configuration pipe
 The {ls} configuration pipeline listens for incoming {agent} connections,
 processes received events, and then sends the events to {es}.
 
+Please be aware that the structure of the documents sent from {agent} to {ls} must not be modified by the pipeline.
+We recommend that the pipeline doesn’t edit or remove the fields and their contents.
+Editing the structure of the documents coming from {agent} can prevent the {es} ingest pipelines associated to the integrations in use to work correctly.
+We cannot guarantee that the {es} ingest pipelines associated to the integrations using {agent} can work with missing or modified fields.
+
 The following {ls} pipeline definition example configures a pipeline that listens on port `5044` for
 incoming {agent} connections and routes received events to {es}.