diff --git a/packages/http_endpoint/_dev/deploy/docker/docker-compose.yml b/packages/http_endpoint/_dev/deploy/docker/docker-compose.yml
index ba0b43149ae..f8a8a0ea52d 100644
--- a/packages/http_endpoint/_dev/deploy/docker/docker-compose.yml
+++ b/packages/http_endpoint/_dev/deploy/docker/docker-compose.yml
@@ -1,13 +1,29 @@
 version: '2.3'
 services:
   test-webhook-http:
-    image: docker.elastic.co/observability/stream:v0.15.0
+    image: docker.elastic.co/observability/stream:v0.16.0
     volumes:
       - ./sample_logs:/sample_logs:ro
     environment:
       - STREAM_PROTOCOL=webhook
       - STREAM_ADDR=http://elastic-agent:9515/json
       - STREAM_WEBHOOK_HEADER=Content-Type=application/json
-      - STREAM_USERNAME=abc123
-      - STREAM_PASSWORD=abc123
-    command: log --start-signal=SIGHUP --webhook-username=abc123 --webhook-password=abc123 --delay=10s /sample_logs/test-webhook.log
+      - STREAM_WEBHOOK_USERNAME=abc123
+      - STREAM_WEBHOOK_PASSWORD=abc123
+      - STREAM_START_SIGNAL=SIGHUP
+      - STREAM_DELAY=10s
+    command: log /sample_logs/test-webhook.log
+  test-webhook-http-ack:
+    image: docker.elastic.co/observability/stream:v0.16.0
+    volumes:
+      - ./sample_logs:/sample_logs:ro
+    environment:
+      - STREAM_PROTOCOL=webhook
+      - STREAM_ADDR=http://elastic-agent:9516/json?wait_for_completion_timeout=1m
+      - STREAM_WEBHOOK_HEADER=Content-Type=application/json
+      - STREAM_WEBHOOK_USERNAME=abc123
+      - STREAM_WEBHOOK_PASSWORD=abc123
+      - STREAM_START_SIGNAL=SIGHUP
+      - STREAM_DELAY=10s
+      - STREAM_WEBHOOK_TIMEOUT=2m
+    command: log /sample_logs/test-webhook.log
diff --git a/packages/http_endpoint/_dev/test/system/test-http-acked-config.yml b/packages/http_endpoint/_dev/test/system/test-http-acked-config.yml
new file mode 100644
index 00000000000..4ca597665f2
--- /dev/null
+++ b/packages/http_endpoint/_dev/test/system/test-http-acked-config.yml
@@ -0,0 +1,13 @@
+service: test-webhook-http-ack
+service_notify_signal: SIGHUP
+input: http_endpoint
+vars:
+  data_stream.dataset: http_endpoint.http_endpoint
+  preserve_original_event: true
+  listen_address: 0.0.0.0
+  url: /json
+  prefix: event
+  listen_port: 9516
+  basic_auth: true
+  username: abc123
+  password: abc123
diff --git a/packages/http_endpoint/changelog.yml b/packages/http_endpoint/changelog.yml
index a836ac38062..bbe91c6d6d5 100644
--- a/packages/http_endpoint/changelog.yml
+++ b/packages/http_endpoint/changelog.yml
@@ -1,3 +1,8 @@
+- version: "2.0.0-next" # Merge into next version and delete this and the following line.
+  changes:
+    - description: Added test for end-to-end ACK behaviour.
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/9843
 - version: "2.0.0"
   changes:
     - description: Converted package to input type.