Case study of building a PHPRAD approval document blockchain application

hello senior, let me introduce myself, I am a student. I am currently building a website app for approval documents. in it there is document submission, document delivery, approval, budget submission, approval, ticket submission attachments, more or less like that.

currently I have created a crud for the submission document. but I have not been able to carry out the activity of sending it to the intended person for approval.

and the activity of approving the document on the website that I built.

what should I do to make it happen?
I made it in Indonesian language