Is there a way to send out an automatic message when a form is approved?
Can I have different column ins a project automatically assign to a certain person when a task is added?
What do you mean “approved” when it comes to form?
Rules (Asana Business) would allow you to do this. Also Zapier, Flowsana…
Hi @anon98033697, thanks for reaching out!
Adding to what Bastien mentioned, you can find more details about Rules in this article: Using Rules in Asana | Product Guide • Asana Product Guide
Once you give us more details about your first question, we’d be happy to help! 
I mean I will change the status to approved
So when a task is approved you want to send a message to someone? Would an email be ok?
Yes and yes an email would be perfect
You could have an email custom field on those tasks, and a zap in place in Zapier → when the approval field changes, then send email .