diff --git a/.github/workflows/notify-slack-on-pr-open.yaml b/.github/workflows/notify-slack-on-pr-open.yaml
new file mode 100644
index 0000000..b14b098
--- /dev/null
+++ b/.github/workflows/notify-slack-on-pr-open.yaml
@@ -0,0 +1,23 @@
+name: Slack Pull Request Notification
+
+on:
+  pull_request:
+    types: [opened, reopened]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Notify Slack on PR open
+      env:
+        WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+        PULL_REQUEST_AUTHOR_ICON_URL: ${{ github.event.pull_request.user.avatar_url }}
+        PULL_REQUEST_AUTHOR_NAME: ${{ github.event.pull_request.user.login }}
+        PULL_REQUEST_AUTHOR_PROFILE_URL: ${{ github.event.pull_request.user.html_url }}
+        PULL_REQUEST_BASE_BRANCH_NAME: ${{ github.event.pull_request.base.ref }}
+        PULL_REQUEST_COMPARE_BRANCH_NAME: ${{ github.event.pull_request.head.ref }}
+        PULL_REQUEST_NUMBER: ${{ github.event.pull_request.number }}
+        PULL_REQUEST_REPO: ${{ github.event.pull_request.head.repo.name }}
+        PULL_REQUEST_TITLE: ${{ github.event.pull_request.title }}
+        PULL_REQUEST_URL: ${{ github.event.pull_request.html_url }}
+      uses: salesforcecli/github-workflows/.github/actions/prNotification@main