App: Google Ads Sync (custom Ids)

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 →

{
  "name": "App: Google Ads Sync (Custom IDs)",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "google-ads-sync",
        "responseMode": "responseNode",
        "options": {}
      },
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "authentication": "firebase",
        "firestoreCollection": "apps/2h_web_solutions_google_ads_asssitant_v1/clients",
        "documentId": "={{ $json.body.clientId }}",
        "options": {}
      },
      "name": "Get Client ID",
      "type": "n8n-nodes-base.googleFirebaseFirestore",
      "typeVersion": 1,
      "position": [
        450,
        300
      ],
      "notes": "Holt die Google Ads Customer ID aus Firestore"
    },
    {
      "parameters": {
        "operation": "get",
        "resource": "campaign",
        "limit": 100,
        "returnAll": true,
        "filters": {
          "status": [
            "ENABLED",
            "PAUSED"
          ]
        },
        "options": {
          "fields": [
            "id",
            "name",
            "status",
            "metrics.clicks",
            "metrics.impressions",
            "metrics.cost_micros",
            "metrics.conversions",
            "metrics.ctr"
          ]
        }
      },
      "name": "Fetch Campaigns",
      "type": "n8n-nodes-base.googleAds",
      "typeVersion": 1,
      "position": [
        650,
        300
      ],
      "credentials": {
        "googleAdsOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "authentication": "firebase",
        "operation": "set",
        "firestoreCollection": "apps/2h_web_solutions_google_ads_asssitant_v1/clients/{{ $('Webhook').item.json.body.clientId }}/campaigns",
        "documentId": "={{ $json.name.toString().toLowerCase().replace(/\u00e4/g, 'ae').replace(/\u00f6/g, 'oe').replace(/\u00fc/g, 'ue').replace(/\u00df/g, 'ss').replace(/ /g, '-').replace(/[^a-z0-9-]/g, '') }}",
        "columns": {
          "mappingMode": "defineBelow",
          "value": {
            "stats": {
              "clicks": "={{ $json.metrics.clicks }}",
              "impressions": "={{ $json.metrics.impressions }}",
              "cost": "={{ $json.metrics.cost_micros / 1000000 }}",
              "conversions": "={{ $json.metrics.conversions }}",
              "lastUpdated": "={{ new Date().toISOString() }}"
            },
            "status": "={{ $json.status }}",
            "name": "={{ $json.name }}",
            "googleAdsId": "={{ $json.id }}",
            "type": "Google Ads (Synced)"
          }
        },
        "options": {
          "merge": true
        }
      },
      "name": "Save to Firestore",
      "type": "n8n-nodes-base.googleFirebaseFirestore",
      "typeVersion": 1,
      "position": [
        850,
        300
      ]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "{\n \"status\": \"success\",\n \"count\": {{ $items.length }}\n}",
        "options": {}
      },
      "name": "Done",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1,
      "position": [
        1050,
        300
      ]
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "Get Client ID",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get Client ID": {
      "main": [
        [
          {
            "node": "Fetch Campaigns",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Fetch Campaigns": {
      "main": [
        [
          {
            "node": "Save to Firestore",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Save to Firestore": {
      "main": [
        [
          {
            "node": "Done",
            "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.

• googleAdsOAuth2Api

About this workflow

App: Google Ads Sync (Custom IDs). Uses googleFirebaseFirestore, googleAds. Webhook trigger; 5 nodes.

Source: https://github.com/2H-Web-Solutions/google_ads_assistant/blob/main/n8n/google_ads_sync_custom_ids.json — original creator credit. Request a take-down →

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