Sometimes YAMM doesn't merge the information from your Google Sheets to your email. This because of HTML tags in your draft that are breaking the markers. This article will help you solve this issue.

Adding {{markers}} (or <<markers>>) in your Gmail draft is easy. But if you have edited a lot of your draft (or created your draft somewhere else like Google Inbox), it might contain some invisible HTML tags that break YAMM's ability to search & replace markers.

In that case, select the faulty marker in your draft and click on the 'Remove Formatting' button in the Gmail draft editor. That should remove all invisible HTML tags causing issues.

Some specific markers might also cause problems. Those are the ones with a number before, such as <<1day>>, <<2day>>, <<3day>> etc. YAMM might detect only the first marker, resulting in showing the first one for all the email markers. To deal with this issue, you need to modify your markers' name, for example, replacing the number behind them.

Remember that your draft markers have to match precisely the headers from your spreadsheet, including upper/lower cases. Learn more about markers.