# No duplicate row
**URL:** https://community.glideapps.com/t/no-duplicate-row/42765
**Category:** Ask for Help
**Created:** [June 6, 2022, 12:20pm UTC](https://community.glideapps.com/t/no-duplicate-row/42765 "2022-06-06T12:20:05Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Parabolik](https://community.glideapps.com/u/Parabolik)
#### Post date: [June 6, 2022, 12:20pm UTC](https://community.glideapps.com/t/no-duplicate-row/42765/1 "2022-06-06T12:20:05Z")
Hello to all
I have made a list of prospects and I want to invite some prospects to access my application
I have a table A (Annuaire) and a table B (acces)
Table A and table B contain people
I display the list of people in table A
I select a person to display his record with details (name, email, tel)
On this record I click on a button that should copy the line from table A (name, email, tel) to table B and send an email and SMS to this person to notify him.
It works but I have two problems
1/ In the same scenario I can’t send an email and then an sms - it sends the first one but it doesn’t follow on the second one (it seems that the scenario is stopped with this type of action) - so I made two buttons SMS and EMAIL but it’s not the way I wanted it to work
2/ If my prospect is already in table B (same email address) I don’t execute anything to avoid notifying the person several times and especially to avoid creating a duplicate in table B
Thank you for helping me to get around these two problems.
Ludo
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### Author:  [@Parabolik](https://community.glideapps.com/u/Parabolik)
#### Post date: [June 6, 2022, 12:56pm UTC](https://community.glideapps.com/t/no-duplicate-row/42765/2 "2022-06-06T12:56:44Z")
for the duplicate problem finally I found easily
in table A I added a relationship column (email with table B)
if this value is not empty (so it means that this email already exists in table B) I simply hide the button !