Hi @michalrama,
Thanks for reaching out!
One option is to use our conditional notifications feature, which allows you to send different notifications based on whether a field is filled out or not.
Since conditional notifications are part of the paid version of WPForms, please feel free to reach out to us through our contact page if you’d like more details. You’re welcome to include a link to this post for reference.
I apologize that we can’t address questions about paid features here in the www.remarpro.com support forums for WPForms Lite.
Another option is to use custom code to modify the notification based on whether a field is filled out. However, I apologize as customizations like this are outside of our scope for support. In case you’d like to look into custom development options, we highly recommend posting your customization job here.
Thanks!