# Glide Columns Not Updating when Duplicate the Apps (via Link Existing Table) **URL:** \ **Category:** Ask for Help\ **Tags:** data-sync\ **Created:** [April 28, 2025, 9:22am UTC](https://community.glideapps.com/t/glide-columns-not-updating-when-duplicate-the-apps-via-link-existing-table/81591 "2025-04-28T09:22:11Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy)\ **Post date:** [April 28, 2025, 9:35am UTC](https://community.glideapps.com/t/glide-columns-not-updating-when-duplicate-the-apps-via-link-existing-table/81591/2 "2025-04-28T09:35:30Z")
The column you added is a computed column. Computed columns do not sync between linked tables. Only non-computed columns will be kept in sync. To understand more, have a read of the below. It’s quite old, and some of the terminology has changed, but the information is still accurate. > [@Relationship and References Created in Glideapp Table](https://community.glideapps.com/t/relationship-and-references-created-in-glideapp-table/49119/5): > > The way your question is posed is a little confusing, so I won’t try and answer it directly. Instead I’ll explain how it works, and maybe that will help. First thing is that it’s important to understand the difference between Basic and Computed columns. Maybe you already do, but it’s vital in this context so I’ll explain it anyway. Basic Columns are those columns that contain actual data, as opposed to data that’s calculated from other columns. Text, Email, Image, Date/time are all examples o… --- _[View the full topic](https://community.glideapps.com/t/glide-columns-not-updating-when-duplicate-the-apps-via-link-existing-table/81591)._