Schedule Supplier Follow-ups from Airtable POs to Google Calendar with AI, Slack & Gmail

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Built by Rahul Joshi Rahul Joshi
Created on June 05, 2026

Description

πŸ“Š Description
Ensure suppliers never miss a follow-up by automating overdue purchase order tracking and scheduling. πŸ“¦β° This workflow checks Airtable every weekday morning for open POs older than seven days without scheduled follow-ups, generates Google Calendar events, updates Airtable with the follow-up link, and sends notifications to your team via Slack and Gmail. It centralizes supplier management and eliminates manual reminders, helping operations teams stay on top of aging purchase orders and vendor commitments. πŸ“…πŸ“£

πŸ” What This Template Does
1️⃣ Runs on a weekday schedule (default: 10 AM) to scan Airtable for overdue open POs. πŸ“†
2️⃣ Filters POs with missing follow-up links and older than 7 days. πŸ”
3️⃣ Processes each overdue PO one by one. πŸ”„
4️⃣ Creates a Google Calendar event for each supplier follow-up. πŸ“…
5️⃣ Saves the event link back into Airtable and updates follow-up status to β€œPending.” πŸ“
6️⃣ Sends initial and final Slack notifications with PO details and scheduling links. πŸ’¬
7️⃣ Sends a Gmail confirmation email to the assigned supplier or internal team. βœ‰οΈ
8️⃣ Ensures all stakeholders have quick access to follow-up links and event details. πŸ”—

⭐ Key Benefits
βœ… Automates supplier follow-up scheduling with zero manual effort
βœ… Prevents overdue purchase orders from being forgotten
βœ… Consolidates PO aging logic, event creation, and notifications
βœ… Keeps suppliers and internal teams aligned with one workflow
βœ… Ensures follow-ups are consistently logged and traceable in Airtable
βœ… Improves accountability for purchasing and operations teams

🧩 Features
Weekday schedule trigger (cron-based)
Airtable β€œPurchase Orders” table integration
Google Calendar event creation with tracking links
Airtable record update with follow-up status
Slack notifications (initial + final)
Gmail email confirmations
Batch processing for multiple overdue POs
Automated vendor accountability loop

πŸ” Requirements
Airtable Personal Access Token
Google Calendar OAuth2 credentials
Slack API token
Gmail OAuth2 credentials
Airtable table containing: PO ID, Supplier Info, Status, PO Date, Follow-up Link

🎯 Target Audience
Procurement & purchasing teams
Operations managers handling vendor communication
Supply chain coordinators tracking overdue POs
Teams using Airtable for purchase order management
Businesses that need consistent supplier follow-ups

Nodes Used (8)

AI Agent
@n8n/n8n-nodes-langchain.agent
Airtable
n8n-nodes-base.airtable
Gmail
n8n-nodes-base.gmail
Google Calendar
n8n-nodes-base.googleCalendar
OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi
Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow
Slack
n8n-nodes-base.slack
Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured