title: How to make an automatic timestamp in google sheets?
body: <p>I have data in 6 columns and then a column "Last updated" where I manually write the date of the last change in the row. I am sure there is a way to automatize this, but cannot make it work.</p>
  
  <p>note - I do not now how to code, just tried to modify multiple codes I found on the web and nothing worked for me, I am getting desperate.</p>
  
  <p>It is basically a database of chemical substances, where each column is a property, and I need to stamp the last time any of the properties were changed. Can anyone please help me with this?</p>