WP Plugin to fill in and file forms online (no contact form)

I am looking for a plugin that allows e.g. a sales rep to log into a password-protected area of the wordpress site to fill in a form (e.g. about a project at a customer) and save it online and that this representative can access at any time. So no form that is sent somewhere via "send" by eMail.

Optimal would also be the possibility of an automatic eMail notification to this representative, which is sent before a certain deadline.

I have searched countless plugins - membership and project management plugins - but found nothing that somehow gets there. Would be great if someone has an idea.

Many greetings
Merida