Stape created a Spreadsheet Reader variable with which you can read values from cells or ranges in your sheet and use it as an input into Server GTM. The ability to read data from Google sheet to server Google Tag Manager gives an excellent opportunity to enrich sGTM data.
     1. Write data from server Google Tag Manager to Google Sheets
     2. Read data from Google Sheet to server Google Tag Manager
In this blog post, I will show you how to write data from a server-side Google Tag Manager container to a Google Sheets.
How to read data from a Google Sheet and use it inside your server-side Google Tag Manager setup.
In this article you will find out what is Google Tag Assistant, what are the benefits and key features of this extension and how to start using it.