Can I turn off the option to Edit Submission?

I don't want people to have the ability to modify their requests after they have been submitted. I am using the Google Sheets integration and there is a column to edit the submission but I don't want that available to the end user. Thank you for your time and assistance!! 

Do you users have an access to your Google Spreadsheet file? If not, they can only edit their submissions if you provide them an edit link.

How to Let Users Update Their Form Submissions at a Later Date

If they have an access to your Spreadsheet you can hide the column with edit link or give them access only to view the spreadsheet.