Using Named Ranges and Custom Functions in Google Sheets In this video, you'll learn how to add unique company identifiers or internal codes in Google Sheets using different methods. The tutorial covers using the equal sign and ampersands to concatenate codes, creating named ranges for easy reference, and utilizing Google Apps Script to create a custom function for generating codes. These techniques help keep your codes organized and even allow you to fetch data from external APIs. Whether you store codes in cells, sheet tabs, or scripts, this guide offers practical ways to manage unique identifiers efficiently. 00:00 Introduction to Adding Internal Codes 00:29 Creating Named Ranges for Codes 01:25 Using App Script for Custom Functions 02:42 Advanced Code Management Techniques 03:25 Conclusion and Next Steps