# Prevent duplicate Usernames
**URL:** https://community.glideapps.com/t/prevent-duplicate-usernames/15661
**Category:** Feature Requests
**Created:** [September 11, 2020, 8:26pm UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661 "2020-09-11T20:26:06Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Deena](https://community.glideapps.com/u/Deena)
#### Post date: [September 11, 2020, 8:26pm UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661/1 "2020-09-11T20:26:06Z")
Seems that it’s a very common use case to allow user’s to create usernames (or similar). Would be great to have a way to tick a box in text component to prevent duplicate strings from being created so that the usernames are actually unique - (same as IG where you get an error that the username is not available). I understand this is probably a massive over-simplification of developing this feature. 🙃
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### Author:  [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)
#### Post date: [September 11, 2020, 9:37pm UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661/2 "2020-09-11T21:37:39Z")
While we wait for this to be available, a workaround would be using the sign up tab visibility we have talked about many times on here, make a relation from the input username to the username column, and don’t let the user advance when the relation is not empty,
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### Author:  [@Deena](https://community.glideapps.com/u/Deena)
#### Post date: [September 11, 2020, 9:42pm UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661/3 "2020-09-11T21:42:39Z")
We can give then an error message and keep them on the username til they enter one that has not been used? and would there be a lag?
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### Author:  [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)
#### Post date: [September 11, 2020, 9:43pm UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661/4 "2020-09-11T21:43:34Z")
Yes that is the way to go. And no lag here, that will be instantly.
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### Author:  [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)
#### Post date: [September 11, 2020, 9:44pm UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661/5 "2020-09-11T21:44:57Z")
The only risk is that if you use that username for relations then there will be multiple results, because you’re actually storing that duplicated username in your data. Personally I always use email just to make sure.
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### Author:  [@Deena](https://community.glideapps.com/u/Deena)
#### Post date: [September 11, 2020, 9:46pm UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661/6 "2020-09-11T21:46:58Z")
Yeah, I would rather just wait on this one. I don’t love workarounds, especially if they create lag or get too complicated! 😁
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### Author:  [@Manan\_Mehta](https://community.glideapps.com/u/Manan_Mehta)
#### Post date: [September 12, 2020, 4:10am UTC](https://community.glideapps.com/t/prevent-duplicate-usernames/15661/7 "2020-09-12T04:10:52Z")
I do this in my apps which require unique usernames and have zero lags but surely it has a slightly longer workaround. It’s a self-relation with the username column and then a roll-up to count the number of relations. I use a simple condition using the rollup column to show the error text.