Copy value of a dynamic cell to another sheet on edit

I am trying to copy the value of a dynamic cell into a specific cell on another sheet upon edits being done in the first sheet.

Example:
Whenever cell A5 and B3 and C2 are edited on sheet ‘work’, it should take the current value of cell B1 and copy it to cell C5 on sheet ‘overview’.

Here is the code I have so far, but it somehow does not work. What am I missing here?

    function onEdit2() {
var s = SpreadsheetApp.getActiveSheet();
  if( s.getName() == "work") {
    var r =s.getActiveCell() ;
    if(r.getCell('A5') || r.getCell('B3') || r.getCell('C2') {
      var b =  s.getCell('B1') ;
      var uo = SpreadsheetApp.getSheet('overview')
      b.copyTo(uo.getCell('C5'), SpreadsheetApp.CopyPasteType.PASTE_VALUES, false)
    }
  }
}

>Solution :

• First of all onEdit2 can not be used as an onEdit trigger unless it is installable. Therefore I would advice onEdit so you don’t have to create the trigger yourself.

• The optimal way is to use the event handler e that will give you the relevant information you need regarding the cell that is edited.

I also made your code cleaner by using includes to check whether the edited cell is part of a list of cells.

function onEdit(e) {
  const as = e.source.getActiveSheet();
  const ts = e.source.getSheetByName("overview");
  const cell = e.range.getA1Notation();
  const triggerCells = ["A5","B3","C2"];
  
  if (as.getName() == "work" && triggerCells.includes(cell)){
    let b = as.getRange("B1").getValue();
    ts.getRange("C5").setValue(b);
  }

}