# Dwolla email dublicate **URL:** \ **Category:** General\ **Created:** [November 15, 2021, 2:41pm UTC](https://discuss.dwolla.com/t/dwolla-email-dublicate/7608 "2021-11-15T14:41:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![RussianPupok\_Pupok](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/russianpupok_pupok/32/3227_2.png) [@RussianPupok\_Pupok](https://discuss.dwolla.com/u/RussianPupok_Pupok)\ **Post date:** [November 15, 2021, 2:41pm UTC](https://discuss.dwolla.com/t/dwolla-email-dublicate/7608/1 "2021-11-15T14:41:36Z")
Hello. If a user registers in my app that uses dwolla but he already registered in another app that also uses dwolla with the same email will I get an exception? ---
**Author:** ![kmoreira](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/kmoreira/32/2718_2.png) [@kmoreira](https://discuss.dwolla.com/u/kmoreira)\ **Post date:** [November 15, 2021, 3:02pm UTC](https://discuss.dwolla.com/t/dwolla-email-dublicate/7608/2 "2021-11-15T15:02:32Z")
Hi @RussianPupok_Pupok If the other app is under your Dwolla Client account, then the expectation is to receive the duplicate error message. For example, in my Dwolla sandbox dashboard I have a `Main` app and a `secondary` app. If I create a customer with the email `123@email.com` in Main and then create a customer with the same email `123@email.com` in my `secondary` app, then the error will be triggered. However, if `123@email.com` is used by a different Dwolla Client, let’s say you, you can create a customer using email `123@email.com` with no problem. Let me know if that helps! ---
**Author:** ![RussianPupok\_Pupok](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/russianpupok_pupok/32/3227_2.png) [@RussianPupok\_Pupok](https://discuss.dwolla.com/u/RussianPupok_Pupok)\ **Post date:** [November 15, 2021, 4:09pm UTC](https://discuss.dwolla.com/t/dwolla-email-dublicate/7608/3 "2021-11-15T16:09:26Z")
> [@kmoreira](#): > > If the other app is under your Dwolla Client account, then the expectation is to receive the duplicate error message. For example, in my Dwolla sandbox dashboard I have a `Main` app and a `secondary` app. If I create a customer with the email `123@email.com` in Main and then create a customer with the same email `123@email.com` in my `secondary` app, then the error will be triggered. > > However, if `123@email.com` is used by a different Dwolla Client, let’s say you, you can create a customer using email `123@email.com` with no problem. Let me know if that helps! Thanks!!!