How do I build in an approval workflow into the form

I want to be able to build and approval workflow, so submitted can shared with 2 other within my organisation.

However how do I protect the data held so once customer submits fields can not be edited.

Please check the steps provided by my colleague here: http://www.jotform.com/answers/401633#401648 to see how to create approval form. 

You can also search for some other methods into our support forum: http://www.jotform.com/answers/search.php?search=approval+workflow. 

On this thread my colleage provide detail explanation how to disable fields in an Approval Form edit mode: https://www.jotform.com/answers/889449 

Let us know if you need further assistance.