## Preparations
In the `core\units\users\users_event_handler.php` replace line `$form_fields['Status']['default'] = STATUS_ACTIVE; with:
$form_fields['Status']['default'] = null;
$form_fields['Status']['required'] = 1;
## Testing
# Go to {nav User Management & Users} section
# Press `Add` toolbar button
# Enter required `Password`, `Re-enter Password` and `E-mail` fields
# Press `Save` toolbar button
# Confirm that form shows error and is scrolled to the `Status` field
# Choose some value for `Status` field
# Input `abc` in the `Modified` date field
# Press `Save` toolbar button
# Confirm that form shows error and is scrolled to the `Modified` field