Functory
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Blog & Resources

Function Ideas
& Engineering

A curated list of function ideas for devs whose imagination is currently returning null.

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All30EtlAnalyticsMarketing-automationData-toolsBusiness-automationMarketing-analyticsData-cleaningHr-analyticsReportingAutomation-scriptsEngineering-metricsProduct-analyticsEmail-analyticsAutomationEcommerce-analyticsSupply-chainEcommerceAd-analyticsAds-analyticsBillingCampaign-analyticsInventoryInternal-toolsSaas-metricsWeb-scrapingCustomer-successSaas-financeSeoFinanceEmail-deliverabilityCohort-analysisHr-automationDashboards
6 min

Turn Raw Inventory CSVs into Inventory Turnover Report in Python for Quarterly Supply-Chain Reviews

Step-by-step guide to convert raw warehouse stock-movement CSVs into quarterly inventory turnover reports in Python and publish as a Functory API.

6 min

Python WooCommerce Average Order Value Report: Automate Order CSV to AOV Report and Publish as a Functory API

Turn WooCommerce order CSVs into an actionable Average Order Value report using a single-file Python script and publish it as a Functory API for no-ops execution.

8 min

Python script to convert HR Excel exports to monthly turnover rate report for agencies

Turn messy HR Excel exports into reproducible monthly turnover rate reports for multi-client agencies using a single-file Python script deployable on Functory.

7 min

Python return rate report from shipping exports — tiny script to generate returns metrics for ops dashboards

Small Python script to convert shipping provider exports into 30-day return-rate reports for ops dashboards; deployable as a Functory function.

6 min

Python Jira Throughput Report: Convert Jira Milestones to Weekly Throughput for Engineering Dashboards (no-ops API)

Turn Jira milestones into a weekly throughput report with Python. Compute per-milestone completed counts, rolling averages, and avg cycle time for dashboards.

6 min

Python DAU/WAU/MAU Report from BigQuery CSV for Investor Updates

Turn BigQuery CSV event dumps into reproducible DAU/WAU/MAU reports in Python; deploy as a Functory function for one-click investor updates.

6 min

Python: Convert Stripe subscription CSV to expansion revenue report for founder dashboards (callable from Zapier, Make, n8n)

Convert Stripe subscription CSV exports into monthly expansion revenue reports using Python and pandas; deploy as a Functory API and call from Zapier, Make or n8n.

6 min

Python compute cost per lead from Google Ads CSV exports and automate for indie hackers

Learn how to compute cost per lead from Google Ads CSV exports in Python, normalize messy exports, and automate weekly reports for indie hackers.

7 min

Python Chargebee Excel to Expansion Revenue Report — Automate Invoice Processing with Functory

Turn Chargebee invoice Excel exports into an automated expansion revenue report using Python and Functory; reproducible ETL, code sample, and deployment guidance.

7 min

Generate MRR from Paddle Excel Export in Python for Zapier, Make, or n8n

Convert Paddle Excel invoice exports into a monthly MRR report using a single-file Python function; deploy on Functory and call from Zapier, Make, or n8n.

6 min

Generate an LTV Report from Chargebee CSV Exports in Python (single-file Functory script)

Turn Chargebee invoice CSV exports into cohort LTV reports using a single-file Python script deployable on Functory; includes code, schema, and workflow.

8 min

Generate a LinkedIn Ads CAC Report in Python and Deploy as an API for SaaS Acquisition Reviews

Turn LinkedIn Ads creative exports into a CAC report with Python, including code, a real dataset example, and how to publish it as an API on Functory.

8 min

Generate a Lead Time to Merge Report from Trello CSV in Python (Excel‑ready)

Turn Trello CSV exports with milestone timestamps into an Excel-ready lead time to merge report using a single-file Python script deployable on Functory.

7 min

Generate a Feature Adoption Rate Report from BigQuery CSV in Python for SaaS Roadmap Prioritization

Turn BigQuery CSV signup/event dumps into cohorted feature adoption rate reports with a compact Python script, ready to automate via Functory.

7 min

Convert Time-Tracking CSV to Overtime Hours Report in Python for Small HR Teams

Step-by-step guide to convert messy time-tracking CSV exports into monthly overtime reports using Python, pandas, and Functory for small HR teams.

7 min

Convert Customer.io Clicks CSV to Quarterly Open Rate Report with a Single-File Python Script

Turn Customer.io campaign CSVs with clicks into a quarterly open-rate report using a single-file Python script and publish it as a Functory API.

7 min

Compute WooCommerce Discount Conversion Rate from Order CSV Exports in Python (for Indie Hackers)

Analyze WooCommerce order CSVs to compute discount-focused conversion metrics per SKU, rank winning products, and publish the logic as a Functory API.

7 min

Compute ROAS from Google Ads CSV in Python and Publish as a Functory API to Identify Winning Creatives

Step-by-step guide to compute ROAS from Google Ads keyword CSVs in Python, identify winning creatives, and publish the logic as a Functory API.

8 min

Compute LTV from Paddle CSV Exports in Python — Step-by-step Functory API for Subscription Reporting

Step-by-step guide to compute subscription LTV from Paddle CSVs in Python and publish as a Functory API; includes code, workflow, and business impact.

7 min

Compute LTV from Chargebee Excel Exports in Python for Investor Updates

Step-by-step guide to compute cohort and monthly LTV from Chargebee Excel exports with Python, ready to deploy as a Functory function for investor updates.

7 min

Compute lead time to merge from GitHub CSV exports with Python for sprint retrospectives

Turn GitHub PR CSV exports into sprint-ready lead time to merge metrics with a single-file Python function and publish it on Functory for no-ops automation.

6 min

Compute Inventory Turnover from Shipping Provider CSV Returns in Python for Weekly Standups

Practical Python guide to compute inventory turnover from shipping provider CSVs (including returns), with code, dataset examples, and Functory deployment tips.

7 min

Compute Headcount Evolution from HR Excel Files in Python for Monthly Reports

Turn HR Excel spreadsheets into reproducible monthly headcount and FTE reports with a Python function and deploy it on Functory for NoOps execution.

7 min

Compute DAU / WAU / MAU from Snowflake CSV in Python and deploy as a live API for investor updates

Compact Python pattern to compute DAU/WAU/MAU from Snowflake CSV and deploy as a Functory API for investor updates. Includes code and workflow.

7 min

Compute DAU WAU MAU from BigQuery CSV snapshots in Python — tiny script for startups

Tiny Python script to compute DAU/WAU/MAU from BigQuery CSV snapshots; reproducible, low-cost, and publishable as a Functory API for startups.

7 min

Compute Conversion Rate from WooCommerce Order CSV in Python and Deploy as API

Step-by-step guide to compute product conversion rate from WooCommerce order CSVs in Python, normalize line_items, and deploy as an API with Functory.

7 min

Compute Cart Abandonment Rate from BigCommerce Product CSV in Python and Deploy as an API

Compute product-level cart abandonment from BigCommerce product CSV using Python; generate ranked reports and deploy as an API (Functory).

7 min

Compute bug-to-feature ratio from Linear project boards in Python (single-file Functory function)

Single-file Python pattern to compute bug-to-feature ratio from Linear boards and publish as a Functory API; includes code, algorithm, and deployment notes.

8 min

Compute bug-to-feature ratio from GitHub project boards in Python (callable from Zapier/Make/n8n)

Single-file Python guide to compute bug-to-feature ratio from GitHub project boards and expose it as an API callable from Zapier, Make or n8n.

6 min

Compute ARR from Paddle CSV exports in Python and deploy as an API for automated board reports

Turn Paddle subscription CSVs into a reproducible ARR number with a single Python function and deploy it as an API for automated board reports.