Alert window when the username or password is invalid

hello everyone I am new to bubble and French, excuse me in advance for the English translation

I made a login page where the user must enter their username (email)
as well as his password

I would like, when the identifier is unknown or the password unknown, to be able to display an alert window

could you help me on this subject?

thanks in advance

Hey @bubbleweb5151,

Bubble already has an alert that states the credentials used for login are invalid.
If you want to customize the alert and show your own popup, have a look at this content:

Hope it helps!