# Login 2 people
**URL:** https://community.glideapps.com/t/login-2-people/85382
**Category:** Ask for Help
**Created:** [November 14, 2025, 2:57pm UTC](https://community.glideapps.com/t/login-2-people/85382 "2025-11-14T14:57:52Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Annsofie\_90](https://community.glideapps.com/u/Annsofie_90)
#### Post date: [November 14, 2025, 2:57pm UTC](https://community.glideapps.com/t/login-2-people/85382/1 "2025-11-14T14:57:52Z")
I want to make sure that two people cannot log in using the same email address. How can I do that? I’m on the Business Plan.
Thx!
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### Author:  [@MaximeBaker](https://community.glideapps.com/u/MaximeBaker)
#### Post date: [November 14, 2025, 4:05pm UTC](https://community.glideapps.com/t/login-2-people/85382/2 "2025-11-14T16:05:10Z")
The first email in the users profile table will be taken if you login with that email. You should avoid using the same email more than once in the users table.
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### Author:  [@Jessica2013](https://community.glideapps.com/u/Jessica2013)
#### Post date: [November 14, 2025, 8:22pm UTC](https://community.glideapps.com/t/login-2-people/85382/3 "2025-11-14T20:22:26Z")
On the Business plan, Glide already blocks multiple users from using the same email—just use Glide’s email sign-in and enable User Profiles. Make sure users don’t type emails manually; always use Signed-in User Email so Glide controls identity and prevents duplicates automatically.
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### Author:  [@Annsofie\_90](https://community.glideapps.com/u/Annsofie_90)
#### Post date: [November 14, 2025, 8:54pm UTC](https://community.glideapps.com/t/login-2-people/85382/4 "2025-11-14T20:54:01Z")
Hi,
Can you explain to me how to do it correctly?
Thx!
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### Author:  [@Jeff\_Hager](https://community.glideapps.com/u/Jeff_Hager)
#### Post date: [November 14, 2025, 10:00pm UTC](https://community.glideapps.com/t/login-2-people/85382/5 "2025-11-14T22:00:23Z")
I’m not aware of any built in functionality that prevents users from logging in on multiple devices at the same time. Best you can do is gather any limited device info and try to create a fingerprint of the device. It’s not foolproof as most browsers prevent granular device and user tracking, and in my opinion would be a bigger pain due to false positives.
> [@Preventing Multi-Login Sessions](https://community.glideapps.com/t/preventing-multi-login-sessions/75062/2):
>
> At the moment, there’s no straightforward way to do that. If I have to do this, maybe the only way is associating an email with X lines of device fingerprinting info/IP address. Every time a user logs in, you check their device fingerprinting/IP address against the list of info you already have from their previous logs in. If they have crossed the allowed number, then you don’t allow them to access content.
If you force sessions to expire, it won’t prevent users from sharing an email address, but it will become annoying for the owner of the email that has to constantly provide new pins to the other user.
Also, if you have enough functionality that relies on user specific columns, both users will be trampling over each other constantly and providing a bad experience for both.
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### Author:  [@ThinhDinh](https://community.glideapps.com/u/ThinhDinh)
#### Post date: [November 15, 2025, 12:19am UTC](https://community.glideapps.com/t/login-2-people/85382/6 "2025-11-15T00:19:21Z")
> [@Jeff\_Hager](#):
>
> It’s not foolproof as most browsers prevent granular device and user tracking, and in my opinion would be a bigger pain due to false positives.
I can confirm it’s a pain from my own build. I would not recommend it.