diff --git a/.github/workflows/vercel-preview.yml b/.github/workflows/vercel-preview.yml
index ed4bde9..d29e7b1 100644
--- a/.github/workflows/vercel-preview.yml
+++ b/.github/workflows/vercel-preview.yml
@@ -26,8 +26,10 @@ on:
         description: "Vercel deployment token"
         required: true
 
+# Scoped per project so a repo deploying several Vercel projects from one PR
+# gets an independent group per project instead of the jobs cancelling each other.
 concurrency:
-  group: vercel-preview-${{ github.event.pull_request.number }}
+  group: vercel-preview-${{ github.event.pull_request.number }}-${{ inputs.vercel-project-id }}
   cancel-in-progress: true
 
 jobs:
@@ -73,6 +75,8 @@ jobs:
           echo "inspect_url=$inspect_url" >> "$GITHUB_OUTPUT"
 
       # Posts (or updates in place) a single comment on the PR with the preview URL.
+      # The marker is scoped per project so each Vercel project keeps its own
+      # comment rather than overwriting another project's.
       - name: Comment preview URL on PR
         env:
           GH_TOKEN: ${{ github.token }}
@@ -82,7 +86,7 @@ jobs:
           INSPECT_URL: ${{ steps.deploy.outputs.inspect_url }}
           COMMIT_SHA: ${{ github.event.pull_request.head.sha }}
         run: |
-          marker='<!-- vercel-preview -->'
+          marker="<!-- vercel-preview:${VERCEL_PROJECT_ID} -->"
           body="$marker
           ### ⚡ Preview environment is deploying
 
@@ -91,7 +95,7 @@ jobs:
           **Preview URL:** ${DEPLOY_URL}
           **Inspect:** ${INSPECT_URL}
 
-          _Deployed commit ${COMMIT_SHA}_"
+          _Project ${VERCEL_PROJECT_ID}, deployed commit ${COMMIT_SHA}_"
 
           comment_id="$(gh api "repos/${REPO}/issues/${PR_NUMBER}/comments" \
             --jq "[.[] | select(.body | startswith(\"${marker}\"))][0].id")"
diff --git a/.github/workflows/vercel-production.yml b/.github/workflows/vercel-production.yml
index 9eb80f9..1e210ee 100644
--- a/.github/workflows/vercel-production.yml
+++ b/.github/workflows/vercel-production.yml
@@ -26,8 +26,10 @@ on:
         description: "Vercel deployment token"
         required: true
 
+# Scoped per project so a repo deploying several Vercel projects from one push
+# gets an independent group per project instead of the jobs queueing behind each other.
 concurrency:
-  group: vercel-production-${{ github.ref }}
+  group: vercel-production-${{ github.ref }}-${{ inputs.vercel-project-id }}
   cancel-in-progress: false
 
 jobs:
diff --git a/docs/vercel-preview.md b/docs/vercel-preview.md
index 63a9ae2..079b767 100644
--- a/docs/vercel-preview.md
+++ b/docs/vercel-preview.md
@@ -17,6 +17,12 @@ pull request with the preview and inspect URLs. Intended to be called from a
 |---------------|----------|--------------------------|
 | vercel-token  | ✅       | Vercel deployment token  |
 
+#### Concurrency
+
+Runs are grouped by pull request **and** `vercel-project-id`, with
+`cancel-in-progress: true`. A new commit supersedes the in-flight preview for
+that project, while previews for other projects are left alone.
+
 #### Example Usage
 
 ```yaml
@@ -34,3 +40,32 @@ jobs:
     secrets:
       vercel-token: ${{ secrets.VERCEL_TOKEN }}
 ```
+
+#### Deploying more than one Vercel project
+
+Call the workflow once per project. Give each call a distinct
+`environment-name`, otherwise every job writes its deployment status and URL to
+the same GitHub Environment and the last one to finish wins.
+
+```yaml
+jobs:
+  deploy-storefront-preview:
+    uses: aligent/workflows/.github/workflows/vercel-preview.yml@main
+    with:
+      vercel-org-id: ${{ vars.VERCEL_ORG_ID }}
+      vercel-project-id: ${{ vars.VERCEL_PROJECT_ID }}
+      environment-name: Preview
+    secrets:
+      vercel-token: ${{ secrets.VERCEL_TOKEN }}
+
+  deploy-admin-preview:
+    uses: aligent/workflows/.github/workflows/vercel-preview.yml@main
+    with:
+      vercel-org-id: ${{ vars.VERCEL_ORG_ID }}
+      vercel-project-id: ${{ vars.VERCEL_ADMIN_PROJECT_ID }}
+      environment-name: Preview - admin
+    secrets:
+      vercel-token: ${{ secrets.VERCEL_TOKEN }}
+```
+
+Each project gets its own PR comment, keyed on the project ID.
diff --git a/docs/vercel-production.md b/docs/vercel-production.md
index 908513d..05f1651 100644
--- a/docs/vercel-production.md
+++ b/docs/vercel-production.md
@@ -16,6 +16,12 @@ Deploys a production build to Vercel. Intended to be called from a `push` (or
 |---------------|----------|--------------------------|
 | vercel-token  | ✅       | Vercel deployment token  |
 
+#### Concurrency
+
+Runs are grouped by ref **and** `vercel-project-id`, with
+`cancel-in-progress: false`. Deploys for the same project queue in order, while
+deploys for different projects run in parallel.
+
 #### Example Usage
 
 ```yaml
@@ -34,3 +40,30 @@ jobs:
     secrets:
       vercel-token: ${{ secrets.VERCEL_TOKEN }}
 ```
+
+#### Deploying more than one Vercel project
+
+Call the workflow once per project. Give each call a distinct
+`environment-name`, otherwise every job writes its deployment status and URL to
+the same GitHub Environment and the last one to finish wins.
+
+```yaml
+jobs:
+  deploy-storefront-production:
+    uses: aligent/workflows/.github/workflows/vercel-production.yml@main
+    with:
+      vercel-org-id: ${{ vars.VERCEL_ORG_ID }}
+      vercel-project-id: ${{ vars.VERCEL_PROJECT_ID }}
+      environment-name: Production
+    secrets:
+      vercel-token: ${{ secrets.VERCEL_TOKEN }}
+
+  deploy-admin-production:
+    uses: aligent/workflows/.github/workflows/vercel-production.yml@main
+    with:
+      vercel-org-id: ${{ vars.VERCEL_ORG_ID }}
+      vercel-project-id: ${{ vars.VERCEL_ADMIN_PROJECT_ID }}
+      environment-name: Production - admin
+    secrets:
+      vercel-token: ${{ secrets.VERCEL_TOKEN }}
+```