Hayrullah Kar (@magesheet)

@magesheetSakarya,TurkeyJoined May 2026

Founder & Automation Strategist @MageSheet. I specialize in building intelligent automation systems and custom CRMs using Google Apps Script and AI to eliminate manual workflows and drive business efficiency.

@magesheetSakarya,TurkeyJoined May 2026

Hayrullah Kar

About

Available for

Hayrullah Kar's blogs

Recently published

One callModel() for Gemini, OpenAI and Claude in Apps Script

When a Commission Rate Changes, Last Quarter's Payouts Shouldn't

Apps Script Session Auth: Your Cache Expires Before Your Session Does

Apps Script Handover Audit: Verify You Actually Own the Delivered Code

Magento Order Sync in Apps Script: Page-Based Pagination Drops Orders

Hayrullah Kar

About

Available for

Hayrullah Kar's blogs

Recently published

One callModel() for Gemini, OpenAI and Claude in Apps Script

When a Commission Rate Changes, Last Quarter's Payouts Shouldn't

Apps Script Session Auth: Your Cache Expires Before Your Session Does

Apps Script Handover Audit: Verify You Actually Own the Delivered Code

Magento Order Sync in Apps Script: Page-Based Pagination Drops Orders

Hayrullah Kar

About

Available for

Hayrullah Kar's blogs

Recently published

One callModel() for Gemini, OpenAI and Claude in Apps Script

When a Commission Rate Changes, Last Quarter's Payouts Shouldn't

Apps Script Session Auth: Your Cache Expires Before Your Session Does

Apps Script Handover Audit: Verify You Actually Own the Delivered Code

Magento Order Sync in Apps Script: Page-Based Pagination Drops Orders

Search Hashnode

Hayrullah Kar

About

Available for

Hayrullah Kar's blogs

Recently published

One callModel() for Gemini, OpenAI and Claude in Apps Script

When a Commission Rate Changes, Last Quarter's Payouts Shouldn't

Apps Script Session Auth: Your Cache Expires Before Your Session Does

Apps Script Handover Audit: Verify You Actually Own the Delivered Code

Magento Order Sync in Apps Script: Page-Based Pagination Drops Orders