# Apply an existing formula in Google Sheet when a new item is added by the user **URL:** \ **Category:** Ask for Help\ **Created:** [November 28, 2020, 9:34pm UTC](https://community.glideapps.com/t/apply-an-existing-formula-in-google-sheet-when-a-new-item-is-added-by-the-user/19079 "2020-11-28T21:34:56Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![ThinhDinh](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/thinhdinh/32/49_2.png) [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)\ **Post date:** [November 28, 2020, 10:25pm UTC](https://community.glideapps.com/t/apply-an-existing-formula-in-google-sheet-when-a-new-item-is-added-by-the-user/19079/2 "2020-11-28T22:25:10Z")
You can try the script here in my post. > [@Tutorial: Arrayformula in Google Sheets, good practices & how to overcome Arrayformula restrictions with scripts](https://community.glideapps.com/t/tutorial-arrayformula-in-google-sheets-good-practices-how-to-overcome-arrayformula-restrictions-with-scripts/9727): > > Hi, Today I will show you the script that can make copying formulas down work, when it does not work with arrayformula. But first, let’s have some introductions about arrayformula, for those who has not used this before in Google Sheets, some equivalents in Glide and some good practices while using it. I hope it can help you in building your Glide apps as well as applying it in your normal day job. > > > **1/ Definition** > > > > Arrayformula is defined as “a range, mathematical expression using one cell range … --- _[View the full topic](https://community.glideapps.com/t/apply-an-existing-formula-in-google-sheet-when-a-new-item-is-added-by-the-user/19079)._