Remove duplicates when copying a row from one sheet to another

Hello,

I am new to the wonderful world of VBA. I have a mastersheet with data that once updated a user can click the "update" button and the info transfers over to the corresponding sheet. However, when the button is clicked for the 2nd, 3rd, 4th, etc. time, the data duplicates previous data already copied to the additional sheets. I know that I am needing to delete the duplicates, but nothing I have tried so far is working. Help!

Thanks!