Approval process jotform - way to make the first portion of the form uneditable?

Hi

I have implemented approval processes based on this answer to a previous question:

I think you can do that by creating an approval form. Here's a guide: https://www.jotform.com/help/432-A-General-Approach-on-Building-an-Approval-Process-Workflow

However, is there a way that when the form goes to the approving party, the portion of the form completed by the submitting party can be locked so that the approving party can't change their submitted portion?

This is indeed possible, following the same logic of the conditions explained on the step 6c of the guide, you can set up a condition to disable the fields if the URL contains "edit", here is a guide that will help you to do so:

https://www.jotform.com/help/371-How-to-Enable-Disable-Fields-Using-Conditional-Logic

If you have any questions, let us know.