Belmont Digital This workflow corresponds to n8n.io template #2171 — we link there as the canonical source.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"nodes": [
{
"id": "401dbfb3-5475-4b00-b2df-3aa685815b05",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
340,
-260
],
"parameters": {
"width": 747,
"height": 428,
"content": "## Purpose \nTo verify the mailing address for new contacts in HighLevel. \n\nWhenever I add a new contact to HighLevel, I run this automation to ensure I have a valid mailing address. It also helps me check for misspellings if the contact address was manually entered.\n\nQuick Video Overview:\nhttps://www.loom.com/share/8995ca0b41ce473ebbad9c1973109c0f\n"
},
"typeVersion": 1
},
{
"id": "abca87a6-91ca-4597-aec7-28913c3a33b8",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1480,
-180
],
"parameters": {
"color": 5,
"width": 515,
"height": 763,
"content": "Update HighLevel to indicate if the address is deliverable.\nYou could: \n- Add Tag\n- Start Automation\n- Update a Field\n\nFor Deliverable Addresses - I apply a tag that the address was verified.\n\nFor Non Deliverable Addresses - I apply a tag, which triggers an automation for my team to manually verify the address. You could also trigger an automation to reach out to the contact to verify their address.\n\n"
},
"typeVersion": 1
},
{
"id": "0f21121c-c7fb-4697-9663-8ecf03ca76a5",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
520,
200
],
"parameters": {
"color": 4,
"height": 339,
"content": "Receive a webhook from your CRM with the contact address fields"
},
"typeVersion": 1
},
{
"id": "47c9e17d-0b30-41a3-bf83-eb4558fa7b85",
"name": "Set Address Fields",
"type": "n8n-nodes-base.set",
"position": [
840,
280
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "8216105e-23ad-4c5c-8f4a-4f97658e0947",
"name": "address",
"type": "string",
"value": "={{ $json.address }}"
},
{
"id": "111da971-2473-4c5e-a106-22589cf47daf",
"name": "address2",
"type": "string",
"value": ""
},
{
"id": "ed62cf39-10f1-42f6-b18f-bfa58b4fe646",
"name": "city",
"type": "string",
"value": "={{ $json.city }}"
},
{
"id": "d9550200-04ac-4cf4-b7e6-cd40b793ce97",
"name": "state",
"type": "string",
"value": "={{ $json.state }}"
},
{
"id": "62269d11-c98c-4016-83ef-291176f2fc12",
"name": "zip",
"type": "string",
"value": "={{ $json.zip_code }}"
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.3
},
{
"id": "1ee9fabf-a456-4877-8f2c-1150b8e43c7a",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1000,
480
],
"parameters": {
"color": 3,
"width": 430,
"height": 216,
"content": "1. Create an Account a LOB.com\n2. Create API Key (https://help.lob.com/account-management/api-keys)\n3. Update Node with your Credentials (Basic Auth)"
},
"typeVersion": 1
},
{
"id": "6bc67404-b292-4211-a8f9-568802e12786",
"name": "CRM Webhook Trigger",
"type": "n8n-nodes-base.webhook",
"position": [
620,
280
],
"parameters": {
"path": "727deb6f-9d10-4492-92e6-38f3292510b0",
"options": {},
"httpMethod": "POST"
},
"typeVersion": 1.1
},
{
"id": "9ab388c0-8e84-45da-9475-9b83d3f2852d",
"name": "Address Verification",
"type": "n8n-nodes-base.httpRequest",
"position": [
1060,
280
],
"parameters": {
"url": "https://api.lob.com/v1/us_verifications",
"method": "POST",
"options": {},
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "primary_line",
"value": "={{ $json.address }}"
},
{
"name": "secondary_line",
"value": "={{ $json.address2 }}"
},
{
"name": "city",
"value": "={{ $json.city }}"
},
{
"name": "state",
"value": "={{ $json.state }}"
},
{
"name": "zip_code",
"value": "={{ $json.zip_code }}"
}
]
}
},
"typeVersion": 4.1
},
{
"id": "50921e14-2fdf-4bac-8ef7-06fcb9e73176",
"name": "Update HighLevel - Deliverable",
"type": "n8n-nodes-base.highLevel",
"position": [
1580,
160
],
"parameters": {
"email": "={{ $('CRM Webhook Trigger').item.json.email }}",
"phone": "={{ $('CRM Webhook Trigger').item.json.phone }}",
"additionalFields": {
"tags": "Mailing Address Deliverable"
}
},
"credentials": {
"highLevelApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "c81889cb-aeff-4afe-ae1c-747b30a4b6b1",
"name": "Update HighLevel - NOT Deliverable",
"type": "n8n-nodes-base.highLevel",
"position": [
1580,
380
],
"parameters": {
"email": "={{ $('CRM Webhook Trigger').item.json.email }}",
"phone": "={{ $('CRM Webhook Trigger').item.json.phone }}",
"additionalFields": {
"tags": "Mailing Address NOT Deliverable"
}
},
"credentials": {
"highLevelApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "9f896b41-eeb9-4cde-9fc8-e1ba000a2b61",
"name": "Switch",
"type": "n8n-nodes-base.switch",
"position": [
1280,
280
],
"parameters": {
"rules": {
"rules": [
{
"value2": "=deliverable",
"outputKey": "deliverable"
},
{
"value2": "deliverable",
"operation": "notEqual",
"outputKey": "NOT deliverable"
}
]
},
"value1": "={{ $json.deliverability }}",
"dataType": "string"
},
"typeVersion": 2
}
],
"connections": {
"Switch": {
"main": [
[
{
"node": "Update HighLevel - Deliverable",
"type": "main",
"index": 0
}
],
[
{
"node": "Update HighLevel - NOT Deliverable",
"type": "main",
"index": 0
}
]
]
},
"Set Address Fields": {
"main": [
[
{
"node": "Address Verification",
"type": "main",
"index": 0
}
]
]
},
"CRM Webhook Trigger": {
"main": [
[
{
"node": "Set Address Fields",
"type": "main",
"index": 0
}
]
]
},
"Address Verification": {
"main": [
[
{
"node": "Switch",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
highLevelApi
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About this workflow
This n8n workflow verifies the deliverability of mailing addresses stored in HighLevel by integrating with Lob's address verification service.
Source: https://n8n.io/workflows/2171/ — original creator credit. Request a take-down →
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