Verify photo proof of delivery with gpt-5.6-terra, Google Sheets, Gmail and Telegram

by Khairul Muhtadin ✓ · 2 views · created 2026-09-10 · Document Extraction, AI Summarization

What this workflow does

This AI workflow has 47 nodes and runs when someone submits an n8n form (“Delivery Proof Form”) (plus 2 other triggers). Along the way it connects Gmail, Telegram, Google Sheets and OpenAI Chat Model. It also calls api.openai.com over HTTP.

How it runs

Trigger: When someone submits an n8n form (“Delivery Proof Form”) (plus 2 other triggers).

1. Normalize submission and check photo (Code): runs custom JavaScript code
2. Read deliveries for sweep (Google Sheets): uses Google Sheets
3. Read proof log for summary (Google Sheets): uses Google Sheets
4. Validate waybill present (If): checks a condition and branches into true / false
5. Find overdue deliveries (Code): runs custom JavaScript code
6. Summarize proof log week (Code): runs custom JavaScript code
7. Read deliveries register (Google Sheets): uses Google Sheets
8. Build invalid submission alert (Edit Fields (Set)): sets 4 fields: pod_id, email_subject, email_body…
9. AI write overdue nudge (AI Agent): runs an AI agent, with model: Overdue nudge model
10. AI write weekly summary (AI Agent): runs an AI agent, with model: Weekly summary model

…plus 32 more steps. See the full node list below.

Services it uses

GmailTelegramGoogle SheetsOpenAI Chat Model

HTTP calls to: api.openai.com

Before you upgrade to n8n 3.0

Nodes used (11)

• n8n Form Triggern8n-nodes-base.formTrigger
• Coden8n-nodes-base.code
• Ifn8n-nodes-base.if
• Edit Fields (Set)n8n-nodes-base.set
• Gmailn8n-nodes-base.gmail
• Telegramn8n-nodes-base.telegram
• Google Sheetsn8n-nodes-base.googleSheets
• HTTP Requestn8n-nodes-base.httpRequest
• Schedule Triggern8n-nodes-base.scheduleTrigger
• AI Agent@n8n/n8n-nodes-langchain.agent
• OpenAI Chat Model@n8n/n8n-nodes-langchain.lmChatOpenAi

From the author

Proof of delivery that checks itself. This workflow collects driver submissions from an n8n Form, matches each waybill against your Google Sheets deliveries register, verifies the uploaded photo with OpenAI vision (gpt-5.6-terra), and confirms the delivery or…

View the original on n8n.io → Check your own copy