# Avoiding Duplicate Entries **URL:** https://community.glideapps.com/t/avoiding-duplicate-entries/29449 **Category:** Ask for Help **Created:** [July 22, 2021, 6:22pm UTC](https://community.glideapps.com/t/avoiding-duplicate-entries/29449 "2021-07-22T18:22:21Z") **Posts on this page:** 1 **Showing post:** 4
### 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: [July 23, 2021, 12:39am UTC](https://community.glideapps.com/t/avoiding-duplicate-entries/29449/4 "2021-07-23T00:39:53Z")
Then I would advise you to create a custom form. > [@How do I create a custom form?](https://community.glideapps.com/t/how-do-i-create-a-custom-form/25014): > > I’m just dropping this here so I have something to refer people to when they ask. This is a simple concept app (copyable), that demonstrates the following techniques: Building custom forms for adding and editing list items (as an alternative to the native forms provided by Glide) Preventing duplicate new entries using [User Specific Columns](https://docs.glideapps.com/all/reference/data-editor/user-specific-columns) and [Relations](https://docs.glideapps.com/all/reference/data-editor/computed-columns/relation-column) Enforcing mandatory input items The use of visibility conditions and user specific booleans to control user flow There is nothing particula… With those 3 fields, you would create 3 relations that match with the existing phone, email and company name columns in your database. If there are any relations that is not empty, you don’t allow them adding a row to that Sheet. --- _[View the full topic](https://community.glideapps.com/t/avoiding-duplicate-entries/29449)._