Generate employee retention analytics reports with GPT-4o and Gmail digests

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Important notice

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

1. Workflow Overview

Description This workflow automates employee retention analytics by combining candidate performance data with trait level retention statistics. It scores candidates, validates data, and generates a...

Best for

HR automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, n8n-nodes-base.googlesheets, n8n-nodes-base.stickynote, n8n-nodes-base.merge, n8n-nodes-base.code, n8n-nodes-base.if, @n8n/n8n-nodes-langchain.chainllm, @n8n/n8n-nodes-langchain.lmchatazureopenai

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: Generate employee retention analytics reports with GPT-4o and Gmail digests
Workflow name: Generate employee retention analytics reports with GPT-4o and Gmail digests

Description

This workflow automates employee retention analytics by combining candidate performance data with trait-level retention statistics. It scores candidates, validates data, and generates a polished Retention Digest HTML email using GPT (Azure OpenAI). Hiring managers receive structured insights weekly, highlighting top/weak traits, candidate scores, and actionable JD refinement tips.

What This Template Does (Step-by-Step)

⚡ Manual Trigger – Starts workflow execution on demand. 📑 Candidate Data Fetch (Google Sheets – Hires Tracking) – Pulls candidate-level details like name, role, traits, start date, and retention status. 📑 Trait Summary Fetch (Google Sheets – Retention Summary) – Fetches aggregated trait-level retention statistics, including hires, stayed, left, retention %, and weight adjustments. 🔀 Merge Candidate + Trait Data – Combines both datasets into a unified stream for scoring. 🧮 Candidate Scoring & Data Normalization (Code Node) –

Cleans and standardizes data.
Builds a trait → weight map.
Calculates each candidate’s Candidate_Score.
Outputs normalized JSON.
✅ Data Validation (If Node) – Ensures both candidate and trait datasets are present.
TRUE → continues to AI digest generation.
FALSE → routes to error logging.
⚠️ Error Handling Logic (Google Sheets – Error Log) – Logs any failed or incomplete runs into a dedicated error sheet for auditing.
🧠 AI Processing Backend (Azure OpenAI) – Prepares candidate + trait data for GPT processing.
🤖 Retention Digest Generator (LLM Chain) – Uses GPT (gpt-4o-mini) to create a structured HTML Retention Digest, including:
TL;DR summary
Top Traits (positive retention)
Weak Traits (negative retention)
Candidate highlights (scores & retention status)
3 actionable JD refinement tips
📧 Email Delivery (Gmail) – Sends the digest directly to hiring managers as a styled HTML email with subject:
Retention Analysis Digest – Weekly Update

Prerequisites

Google Sheets (Hires Tracking + Retention Summary + Error Log) Gmail API credentials Azure OpenAI access (gpt-4o-mini model) n8n instance (self-hosted or cloud)

Key Benefits

✅ Automates retention analytics & reporting ✅ Provides AI-powered insights in structured HTML ✅ Improves hiring strategy with trait-based scoring ✅ Reduces manual effort in weekly retention reviews ✅ Ensures reliability with error handling & validation

Perfect For

HR & Recruitment teams monitoring post-hire retention Organizations optimizing job descriptions & hiring strategy Talent analytics teams needing automated, AI-driven insights Stakeholders requiring clear weekly digest emails

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 - When clicking ‘Execute workflow’

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

Block 2 - Candidate Data Fetch

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 3 - Sticky Note

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

Block 4 - Sticky Note1

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

Block 5 - Sticky Note2

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

Block 6 - Sticky Note3

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

Block 7 - Sticky Note4

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

Block 8 - Sticky Note5

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

Block 9 - Sticky Note6

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

Block 10 - Sticky Note7

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

Block 11 - Sticky Note8

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

Block 12 - Trait Summary Fetch

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 13 - Merge Candidate + Trait Data

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.2

Block 14 - Candidate Scoring & Data Normalization

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

Block 15 - Data Validation

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

Block 16 - Error Handling Logic

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 17 - Retention Digest Generator

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.7

Block 18 - AI Processing Backend

Type / Role: @n8n/n8n-nodes-langchain.lmChatAzureOpenAi - lmChatAzureOpenAi
Config choices: Version 1

Block 19 - Email Delivery

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

3. Summary Table

Workflow	Generate employee retention analytics reports with GPT-4o and Gmail digests
Complexity	advanced
Nodes	19
Categories	HR, AI Summarization
Author	Rahul Joshi
Published	03 Oct 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/9236/9236.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

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

Download workflow JSON Original n8n.io source HR workflows AI Summarization workflows

Frequently asked questions

What does Generate employee retention analytics reports with GPT-4o and Gmail digests do?

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 HR, AI Summarization use case.

Rahul Joshi

269 workflows

Nodes

n8n-nodes-base.manualtrigger n8n-nodes-base.googlesheets n8n-nodes-base.stickynote n8n-nodes-base.merge n8n-nodes-base.code n8n-nodes-base.if @n8n/n8n-nodes-langchain.chainllm @n8n/n8n-nodes-langchain.lmchatazureopenai

Complexity

advanced

Published 03 Oct 2025

Likes 0

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Install path: /data/workflows/9236/9236.json

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Generate employee retention analytics reports with GPT-4o and Gmail digests

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Description

What This Template Does (Step-by-Step)

Prerequisites

Key Benefits

Perfect For

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When clicking ‘Execute workflow’

Block 2 - Candidate Data Fetch

Block 3 - Sticky Note

Block 4 - Sticky Note1

Block 5 - Sticky Note2

Block 6 - Sticky Note3

Block 7 - Sticky Note4

Block 8 - Sticky Note5

Block 9 - Sticky Note6

Block 10 - Sticky Note7

Block 11 - Sticky Note8

Block 12 - Trait Summary Fetch

Block 13 - Merge Candidate + Trait Data

Block 14 - Candidate Scoring & Data Normalization

Block 15 - Data Validation

Block 16 - Error Handling Logic

Block 17 - Retention Digest Generator

Block 18 - AI Processing Backend

Block 19 - Email Delivery

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions