diff --git a/.github/workflows/merge-acm-alertmanager.yaml b/.github/workflows/merge-acm-alertmanager.yaml
new file mode 100644
index 0000000..6173bd9
--- /dev/null
+++ b/.github/workflows/merge-acm-alertmanager.yaml
@@ -0,0 +1,45 @@
+name: ACM Alertmanager merger
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 1' #@weekly
+  pull_request:
+    paths:
+      - '.github/workflows/merge-acm-flow.yaml'
+      - '.github/workflows/merge-acm-alertmanager.yaml'
+  push:
+    paths:
+      - '.github/workflows/merge-acm-flow.yaml'
+      - '.github/workflows/merge-acm-alertmanager.yaml'
+
+jobs:
+  alertmanager-merge:
+    uses: ./.github/workflows/merge-acm-flow.yaml
+    with:
+      upstream: prometheus/alertmanager
+      downstream: stolostron/prometheus-alertmanager
+      sandbox: rhobs/acm-prometheus-alertmanager
+      go-version: "1.22"
+      restore-upstream: >-
+        CHANGELOG.md
+        VERSION
+        go.mod
+        go.sum
+      assets-cmd: |
+        # Only compress assets if assets actually changed
+        # The git diff relies on gits remote naming. The merge-flow checks out
+        # $downstream as origin at the time of writing this code.
+        if ! git diff --exit-code origin/master ui/react-app; then
+          make assets-compress
+          find ui/react-app -type f -name '*.gz' -exec git add {} \;
+          git add ui/react-app/embed.go
+          git diff --cached --exit-code || git commit -s -m "[bot] assets: generate"
+        fi
+
+    secrets:
+      pr-app-id: ${{ secrets.ACM_APP_ID }}
+      pr-app-private-key: ${{ secrets.ACM_APP_PRIVATE_KEY }}
+      cloner-app-id: ${{ secrets.ACM_CLONER_APP_ID }}
+      cloner-app-private-key: ${{ secrets.ACM_CLONER_APP_PRIVATE_KEY }}
+      slack-webhook-url: ${{ secrets.ACM_SLACK_WEBHOOK_URL }}
\ No newline at end of file
diff --git a/.github/workflows/merge-acm-flow.yaml b/.github/workflows/merge-acm-flow.yaml
index 2a739f7..10a3fd9 100644
--- a/.github/workflows/merge-acm-flow.yaml
+++ b/.github/workflows/merge-acm-flow.yaml
@@ -214,7 +214,7 @@ jobs:
         uses: rhobs/acm-create-pull-request@push-to-fork-token
         id: create-pr
         with:
-          title: "[bot] Bump ${{ inputs.downstream }} to ${{ steps.upstream.outputs.release }}"
+          title: "[ACM Obs bot] Bump ${{ inputs.downstream }} to ${{ steps.upstream.outputs.release }}"
           body: |
             ## Description
             This is an automated version bump from CI.
@@ -245,18 +245,37 @@ jobs:
           token: ${{ steps.pr.outputs.token }}
           push-to-fork: ${{ inputs.sandbox }}
           push-to-fork-token: ${{ steps.cloner.outputs.token }}
+      - name: Check if PR exists using gh cli
+        # This step is a hack for the time being as the create-pull-request action has an issue with listing PRs across different named forks of the same repo.
+        # This is only to get the PR URL if it exists.
+        if: github.event_name != 'pull_request' && failure()
+        id: pr-exists
+        env:
+          GH_TOKEN: ${{ steps.pr.outputs.token }}
+        run: |
+          if [ "${{ steps.create-pr.outcome }}" != "success" ]; then
+            echo "${{ steps.create-pr.outcome }}"
+            PR_URL=$(gh pr list --json url --jq '.[0].url' --repo ${{ inputs.downstream }} --state open  --head automated-updates-acm-${{ inputs.downstream-branch }})
+              if [ ! -z "$PR_URL" ]; then
+                echo "pr_exists=1" >> $GITHUB_OUTPUT
+                echo "pr_url=$PR_URL" >> $GITHUB_OUTPUT
+                echo "PR exists >>  $PR_URL"
+              else
+                echo "pr_exists=0" >> $GITHUB_OUTPUT
+              fi
+          fi
       - name: Compose slack message body
-        if: github.event_name != 'pull_request' && (success() || steps.fork-sync.outputs.status == 'uptodate' || steps.fork-sync.outputs.status == 'ahead' || contains(steps.create_pr.outputs.output, 'A pull request already exists'))
+        if: github.event_name != 'pull_request' && (success() || steps.fork-sync.outputs.status == 'uptodate' || steps.fork-sync.outputs.status == 'ahead' || steps.pr-exists.outputs.pr_exists == '1' )
         continue-on-error: true
         id: slack-message
         run: |
-          if [ "${{ steps.create-pr.outputs.pull-request-url }}" == "" ] || [ ${{ steps.fork-sync.outputs.status }} == "uptodate" ] || [ ${{ steps.fork-sync.outputs.status }} == "ahead" ] ; then
+          if [ ${{ steps.pr-exists.outputs.pr_exists }} != '1' ] || [ ${{ steps.fork-sync.outputs.status }} == "uptodate" ] || [ ${{ steps.fork-sync.outputs.status }} == "ahead" ] ; then
             echo "message=${{ inputs.downstream }} is already ${{ steps.fork-sync.outputs.status }} with tag ${{ steps.org.outputs.downstream-version }}." >> $GITHUB_OUTPUT
           else
-            echo "message=PR ${{ steps.create-pr.outputs.pull-request-url }} has been ${{ steps.create-pr.outputs.pull-request-operation || 'updated' }}." >> $GITHUB_OUTPUT
+            echo "message=PR ${{ steps.pr-exists.outputs.pr_url }} has been updated." >> $GITHUB_OUTPUT
           fi
       - uses: 8398a7/action-slack@v3
-        if: github.event_name != 'pull_request' && (success() || steps.fork-sync.outputs.status == 'uptodate' || steps.fork-sync.outputs.status == 'ahead' || contains(steps.create_pr.outputs.output, 'A pull request already exists'))
+        if: github.event_name != 'pull_request' && (success() || steps.fork-sync.outputs.status == 'uptodate' || steps.fork-sync.outputs.status == 'ahead' || steps.pr-exists.outputs.pr_exists == '1')
         continue-on-error: true
         with:
           status: custom
@@ -271,7 +290,7 @@ jobs:
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.slack-webhook-url }}
       - uses: 8398a7/action-slack@v3
-        if: github.event_name != 'pull_request' && (failure() && steps.fork-sync.outputs.status != 'uptodate' && steps.fork-sync.outputs.status != 'ahead' && !contains(steps.create_pr.outputs.output, 'A pull request already exists'))
+        if: github.event_name != 'pull_request' && (failure() && steps.fork-sync.outputs.status != 'uptodate' && steps.fork-sync.outputs.status != 'ahead' && !(steps.pr-exists.outputs.pr_exists == '1'))
         continue-on-error: true
         with:
           status: custom
diff --git a/.github/workflows/merge-acm-prometheus-operator.yaml b/.github/workflows/merge-acm-prometheus-operator.yaml
index 20bb8f2..96b37a2 100644
--- a/.github/workflows/merge-acm-prometheus-operator.yaml
+++ b/.github/workflows/merge-acm-prometheus-operator.yaml
@@ -3,7 +3,7 @@ name: ACM Prometheus Operator merger
 on:
   workflow_dispatch:
   schedule:
-    - cron: '0 0 * * *' #@daily
+    - cron: '0 0 * * 1' #@weekly
   pull_request:
     paths:
     - '.github/workflows/merge-acm-flow.yaml'
diff --git a/.github/workflows/merge-acm-prometheus.yaml b/.github/workflows/merge-acm-prometheus.yaml
index 22f04f6..cd8d2b7 100644
--- a/.github/workflows/merge-acm-prometheus.yaml
+++ b/.github/workflows/merge-acm-prometheus.yaml
@@ -3,7 +3,7 @@ name: ACM Prometheus merger
 on:
   workflow_dispatch:
   schedule:
-    - cron: '0 0 * * *' #@daily
+    - cron: '0 0 * * 1' #@weekly
   pull_request:
     paths:
     - '.github/workflows/merge-acm-flow.yaml'