The Simple Contact Form widget enables you to create basic forms in Elementor. However, it lacks the option to edit the notification messages.
To work around this limitation, you can utilize Loco Translate to edit the current language. This doesn't require you to create a multilingual website; rather, you can simply modify the existing website language to suit your needs:
- go to Plugins and install Loco Translate
- go to Loco Translate - Plugins - Element Pack Pro
- add a new language (the current website language) and Start Translating
- search for Contact Form and edit all the notifications: