Hi all, I am new to the group so forgive any errors please. I am somewhat versed with Excel. I used the create Invoice and tracker template which I modified to a Purchase Order. I created a dropdown list on the PO form that the user can select to fill out a PO, cell is G4. The numbers are in a table in a sheet called TRACKER. The PO is a sheet called PO. I need the PO to change with each new number selected. The previous numbers need to save and lock so the number can't be reselected and modified. That information needs to feed into the table I linked as TRACKER. I can provide the file to show what I have done so far. I was unable to upload it here as the file type is not supported. Any assistance would be much appreciated! TYIA