diff --git a/.github/workflows/acceptance-tests.yml b/.github/workflows/acceptance-tests.yml
index 494c90a2..f862c838 100644
--- a/.github/workflows/acceptance-tests.yml
+++ b/.github/workflows/acceptance-tests.yml
@@ -8,6 +8,11 @@ on:
         description: 'The reference to checkout before running the acceptance tests. Used to run the tests on a fork.'
         required: true
         type: string
+      notify_slack_on_failure:
+        description: 'Whether to notify slack or not.'
+        required: false
+        default: false
+        type: boolean
     secrets:
       tl_client_id:
         required: true
@@ -17,6 +22,8 @@ on:
         required: true
       tl_signing_private_key:
         required: true
+      slack_webhook_url:
+        required: false
 
 jobs:
   acceptance-tests:
@@ -39,4 +46,51 @@ jobs:
           TL_CLIENT_SECRET: ${{ secrets.tl_client_secret }}
           TL_SIGNING_KEY_ID: ${{ secrets.tl_signing_key_id }}
           TL_SIGNING_PRIVATE_KEY: ${{ secrets.tl_signing_private_key }}
-        run: ./gradlew acceptance-tests
\ No newline at end of file
+        run: ./gradlew acceptance-tests
+  notify-slack:
+    needs: acceptance-tests
+    runs-on: ubuntu-latest
+    if: ${{ always() && contains(needs.*.result, 'failure') && inputs.notify_slack_on_failure == true }}
+    steps:
+      - name: Notify slack
+        uses: slackapi/slack-github-action@v1.24.0
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.slack_webhook_url }}
+          # type is required for custom payloads
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
+        with:
+          payload: |
+            {
+              "blocks": [
+                {
+                  "type": "section",
+                  "text": {
+                    "type": "mrkdwn",
+                    "text": ":fire: *Acceptance tests* are failing in *Sandbox* on our *Java* backend library! :java:"
+                  }
+                },
+                {
+                  "type": "actions",
+                  "elements": [
+                    {
+                      "type": "button",
+                      "text": {
+                        "type": "plain_text",
+                        "text": ":eyes: View on Github"
+                      },
+                      "url": "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+                    }
+                  ]
+                },
+                {
+                  "type": "image",
+                  "title": {
+                    "type": "plain_text",
+                    "text": "I don't like that",
+                    "emoji": true
+                  },
+                  "image_url": "https://media.giphy.com/media/4cuyucPeVWbNS/giphy.gif",
+                  "alt_text": "marg"
+                }
+              ]
+            }
\ No newline at end of file
diff --git a/.github/workflows/workflow-scheduled-acceptance-tests.yml b/.github/workflows/workflow-scheduled-acceptance-tests.yml
index 89a855ce..15304bfe 100644
--- a/.github/workflows/workflow-scheduled-acceptance-tests.yml
+++ b/.github/workflows/workflow-scheduled-acceptance-tests.yml
@@ -3,15 +3,18 @@ name: Scheduled acceptance tests in Sandbox environment
 
 on:
   schedule:
-    - cron: "0 7-19/2 * * *" # every 2 hours between 10 and 20 (UTC)
+    # every hour between 8 and 19 UTC time
+    - cron: "0 8-19/1 * * *"
 
 jobs:
   scheduled-acceptance-tests:
     uses: ./.github/workflows/acceptance-tests.yml
     with:
-      checkout_ref: /refs/heads/main
+      notify_slack_on_failure: true
+      checkout_ref: main
     secrets:
       tl_client_id: ${{ secrets.ACCEPTANCE_TEST_CLIENT_ID }}
       tl_client_secret: ${{ secrets.ACCEPTANCE_TEST_CLIENT_SECRET }}
       tl_signing_key_id: ${{ secrets.ACCEPTANCE_TEST_SIGNING_KEY_ID }}
-      tl_signing_private_key: ${{ secrets.ACCEPTANCE_TEST_SIGNING_PRIVATE_KEY }}
\ No newline at end of file
+      tl_signing_private_key: ${{ secrets.ACCEPTANCE_TEST_SIGNING_PRIVATE_KEY }}
+      slack_webhook_url: ${{ secrets.SLACK_WEBHOOK_URL}}
\ No newline at end of file
diff --git a/README.md b/README.md
index a96ac0fa..5c36165f 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
 # TrueLayer Java
 
-[![Release final version](https://github.com/TrueLayer/truelayer-java/actions/workflows/release-final.yml/badge.svg)](https://github.com/TrueLayer/truelayer-java/actions/workflows/release-final.yml)
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.truelayer/truelayer-java/badge.svg?style=flat)](https://search.maven.org/artifact/com.truelayer/truelayer-java)
 [![javadoc](https://javadoc.io/badge2/com.truelayer/truelayer-java/javadoc.svg)](https://javadoc.io/doc/com.truelayer/truelayer-java)
 [![Coverage Status](https://coveralls.io/repos/github/TrueLayer/truelayer-java/badge.svg?t=gcGKQv)](https://coveralls.io/github/TrueLayer/truelayer-java)
+[![Scheduled acceptance tests in Sandbox environment](https://github.com/TrueLayer/truelayer-java/actions/workflows/workflow-scheduled-acceptance-tests.yml/badge.svg)](https://github.com/TrueLayer/truelayer-java/actions/workflows/workflow-scheduled-acceptance-tests.yml)
 [![License](https://img.shields.io/:license-mit-blue.svg)](https://truelayer.mit-license.org/)
 
 The official [TrueLayer](https://truelayer.com) Java client provides convenient access to TrueLayer APIs from applications built with Java.