Skip to main content

Schedule supplier follow-ups from Airtable POs to Google Calendar with AI, Slack & Gmail

Workflow preview

Workflow preview
100%
Schedule supplier follow-ups from Airtable POs to Google Calendar with AI, Slack & Gmail preview
Open on n8n.io

Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Description Ensure suppliers never miss a follow up by automating overdue purchase order tracking and scheduling. This workflow checks Airtable every weekday morning for open POs older than ...

Best for

  • Project Management automation workflows
  • AI Summarization automation workflows
  • advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.scheduletrigger, n8n-nodes-base.airtable, n8n-nodes-base.splitinbatches, n8n-nodes-base.slack, n8n-nodes-base.googlecalendar, n8n-nodes-base.gmail, n8n-nodes-base.if

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Rahul Joshi.

Original n8n.io source

1.1 Workflow description

Title
Schedule supplier follow-ups from Airtable POs to Google Calendar with AI, Slack & Gmail
Workflow name
Schedule supplier follow-ups from Airtable POs to Google Calendar with AI, Slack & Gmail

📊 Description

Ensure suppliers never miss a follow-up by automating overdue purchase order tracking and scheduling. 📦⏰ 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. 📅📣

🔁 What This Template Does

1️⃣ Runs on a weekday schedule (default: 10 AM) to scan Airtable for overdue open POs. 📆 2️⃣ Filters POs with missing follow-up links and older than 7 days. 🔍 3️⃣ Processes each overdue PO one by one. 🔄 4️⃣ Creates a Google Calendar event for each supplier follow-up. 📅 5️⃣ Saves the event link back into Airtable and updates follow-up status to “Pending.” 📝 6️⃣ Sends initial and final Slack notifications with PO details and scheduling links. 💬 7️⃣ Sends a Gmail confirmation email to the assigned supplier or internal team. ✉️ 8️⃣ Ensures all stakeholders have quick access to follow-up links and event details. 🔗

⭐ Key Benefits

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

🧩 Features

  • Weekday schedule trigger (cron-based)
  • Airtable “Purchase 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

🔐 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

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Sticky Note

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 2 - Sticky Note1

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 3 - Sticky Note2

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 4 - Sticky Note3

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 5 - Sticky Note4

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 6 - Schedule Trigger

Type / Role
n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices
Version 1.2

Block 7 - Fetch Overdue POs from Airtable

Type / Role
n8n-nodes-base.airtable - airtable
Config choices
Version 2

Block 8 - Process Each PO Individually

Type / Role
n8n-nodes-base.splitInBatches - splitInBatches
Config choices
Version 3

Block 9 - Save Calendar Link to Airtable

Type / Role
n8n-nodes-base.airtable - airtable
Config choices
Version 2

Block 10 - Send Slack Notification

Type / Role
n8n-nodes-base.slack - slack
Config choices
Version 2.2

Block 11 - Create Calendar Event

Type / Role
n8n-nodes-base.googleCalendar - googleCalendar
Config choices
Version 1.3

Block 12 - Send Email Confirmation

Type / Role
n8n-nodes-base.gmail - gmail
Config choices
Version 2.1

Block 13 - Initial Slack Alert

Type / Role
n8n-nodes-base.slack - slack
Config choices
Version 2.3

Block 14 - If

Type / Role
n8n-nodes-base.if - if
Config choices
Version 2.2

Block 15 - Parse AI Output (Structured JSON)

Type / Role
@n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices
Version 1.3

Block 16 - AI Model: GPT-4 Screening Engine

Type / Role
@n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices
Version 1.2

Block 17 - AI Memory: Candidate Context

Type / Role
@n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices
Version 1.3

Block 18 - AI Agent: Agent Writer

Type / Role
@n8n/n8n-nodes-langchain.agent - agent
Config choices
Version 2.1

Block 19 - Send a message

Type / Role
n8n-nodes-base.slack - slack
Config choices
Version 2.3

Block 20 - Error Trigger

Type / Role
n8n-nodes-base.errorTrigger - errorTrigger
Config choices
Version 1

Block 21 - Slack - Error Alert

Type / Role
n8n-nodes-base.slack - slack
Config choices
Version 2.1

Block 22 - Sticky Note5

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

3. Summary Table

Workflow Schedule supplier follow-ups from Airtable POs to Google Calendar with AI, Slack & Gmail
Complexity advanced
Nodes 22
Categories Project Management, AI Summarization
Author Rahul Joshi
Published 27 Nov 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/11297/11297.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does Schedule supplier follow-ups from Airtable POs to Google Calendar with AI, Slack & Gmail do?

Description Ensure suppliers never miss a follow up by automating overdue purchase order tracking and scheduling. This workflow checks Airtable every weekday morning for open POs older than ...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Project Management, AI Summarization use case.