Update and email

Hello ??

On the plugin page : Import user from CSV
There is this option : SEND EMAIL
With those two checkboxes :

• Do you want to send email with credentials and other data?
• Do you want to send this email also to users who are updated? (And not just those that are created)

So when I update some users, if I check only the second option, none of them receive email notifications.
If I check both options, these users receive notification but also all the others users that have not been updated.

So what should I do in order to send email only to the users that have been updated please ?

Also, if I put a column in my CSV file named “Password”, it is working fine but if it is not defined the value in the email is empty.

Is there is a way to generate a password the first time if the cells is empty ?

Because if I use the column “user_pass” instead of “password” it is generating a password at first in the email but it also changes it even if the cells are left empty everytime I make an update…

Thank you a lot for your help.