• Go to resend.com and click Sign Up — create a free account.
• After login, click API Keys in the left sidebar.
• Click “Create API Key” and give it a name (e.g., n8n-demo).
• Copy the API key immediately — it is shown only once. Save it securely.

• Open your n8n instance → Click “New Workflow”.
• Give it a name: “Customer Welcome Email Demo”.

• Click “+” → Search “n8n Form Trigger” → Select it.
• Configure the following form fields:

• Set Form Title to: “Customer Registration”.
• Click “Test Step” — n8n will generate a form URL. Copy and save this URL.

• Click “+” after the Form Trigger → Search “Resend” → Select it.
• “Create New Credential” → Paste your API Key from Step 1 → Save.
• Configure the Resend node with the following values:

Paste the following HTML into the Body field of the Resend node:

<h2>Welcome, {{ $json['Full Name'] }}! 🎉</h2>
<p>Thank you for registering with us.</p>
<p>We are excited to have you on board.</p>
<br/>
<p>Best Regards,<br/><strong>Your Company Team</strong></p>

• Click “Test Workflow” in n8n (top right area).
• Open the Form URL (from Step 3) in a browser tab.
• Fill in all the form fields with test data and click Submit.
• Return to n8n — you should see green checkmarks on all nodes. ✅
• Check the email inbox — the welcome email should arrive within seconds. 📧

• Once the test is successful, toggle the “Active” switch at the top right.
• The workflow is now live and will run automatically on every form submission.

Open the existing Form Trigger node and add the following new fields:

For the Plan Type dropdown, add these options:

• Basic
• Pro
• Enterprise

• Click “+” after Form Trigger → Search “IF” → Select it.
• Configure the condition as follows:

This creates two output branches:

• TRUE branch → Customer is 18+ → proceed to Switch node
• FALSE branch → Customer is underage → send Rejection Email

On the FALSE branch — Add a Resend Node:

• Click “+” after IF (TRUE branch) → Search “Switch” → Select it.
• Set “Value” to: {{ $json['Plan Type'] }}
• Add 3 routing rules as follows:

Add one Edit Fields node after each Switch output. Search for Edit Fields (Set).

• Click “+” → Search “Merge” → Select it.
• Set Mode to: “Append”.
• Connect all 3 Edit Fields node outputs into this single Merge node.
• The Merge node will combine all three branches into one flow.

• Click “+” after Merge → Search “Filter” → Select it.
• Configure the filter condition:

Only records that pass this filter will continue to the email node. For the demo, type Restricted in the Country field to test the block.

• Click “+” after Filter → Search “Resend” → Select it.
• Use the existing Resend credential (already set up in Workflow 1).
• Configure the node:

Paste the following HTML into the Body field:

<h2>Welcome, {{ $json['Full Name'] }}! 🎉</h2>
<p>You have successfully registered for the
  <strong>{{ $json.plan_label }}</strong>.</p>

<table style='border-collapse:collapse; width:100%;'>
  <tr>
    <td style='padding:8px; border:1px solid #ddd;'><strong>Plan</strong></td>
    <td style='padding:8px; border:1px solid #ddd;'>{{ $json.plan_label }}</td>
  </tr>
  <tr>
    <td style='padding:8px; border:1px solid #ddd;'><strong>Support</strong></td>
    <td style='padding:8px; border:1px solid #ddd;'>{{ $json.support }}</td>
  </tr>
  <tr>
    <td style='padding:8px; border:1px solid #ddd;'><strong>Pricing</strong></td>
    <td style='padding:8px; border:1px solid #ddd;'>{{ $json.price }}</td>
  </tr>
</table>

<br/>
<p>We are thrilled to have you on board!</p>
<p>Best Regards,<br/><strong>Your Company Team</strong></p>

Run the following 4 test scenarios to verify everything works:

• Once all 4 test scenarios pass successfully:
• Toggle the “Active” switch in the top right corner of n8n.
• The workflow is now live. ✅