I see that popup in the tool tip, and it can be confusion
Only knowing the same Email address is in the system, I know it is not accepting an email address already being used.
I think the tool tip should be changed to something else like “Email already in use.”
I am not seeing the statement in the code. Perhaps is in the database?
Can we get that changed?
Where is the text located?
We use the common validation rule and function “is_unique” for the entire project to validate the unique value.
You can change the text from here: https://github.com/iNextrix/ASTPP/blob/3feb490c00c61769e500005e51ffe8f03b377e2a/web_interface/astpp/system/language/English/form_validation_lang.php#L23
But that will reflect in other modules as well.
So basically you will need to create a custom function for email validation and handle the message from there.