How to auto populate date in Excel when cell is updated

In this article, I will show you how to auto-populate date in Excel when a cell is updated. I will show the whole process using Excel VBA. I will also show how you can modify the code for your specific purposes.

Sometimes several people work on a worksheet and anyone can update the worksheet anytime. So, the worksheet owner might want to see the last updates with the update date and time.

Auto-populating dates in cells using Excel VBA (for the whole column)

Take a look at the following dynamic image. You see when I put some value in a cell of column A, the adjacent column B cell shows the date and time I am changing the cell.

Read More: How to Combine Date and Time in One Cell in Excel (4 Methods)

You update a cell and the adjacent cell shows the update date and time.

VBA Code and step by step procedure

Source code

Private Sub Worksheet_Change(ByVal Target As Range)
' Auto Date
Dim Cell As Range
For Each Cell In Target
    If Cell.Column = Range("A:A").Column Then
        If Cell.Value <> "" Then
            Cells(Cell.Row, "B").Value = Now
        Else
            Cells(Cell.Row, "B").Value = ""
        End If
    End If
Next Cell
End Sub

This is the VBA code that I am going to use. Let’s show you where to put this code.

1) Click on the Developer tab. And then click on the Visual Basic command in the Code window.

To open Excel VBA editor go to Developer tab and then click on the Visual Basic command in the Code window.

2) Microsoft VBA code editor will open like the following image. The keyboard shortcut to open this window is ALT + F11.

When you will open the VBA editor, it might show blank or the existing Macro codes already available in the same workbook or from any workbook open in your Windows system.

3) Double click on the worksheet on which you want to apply our code. So, you will find an editor that looks like this.

To open the Sheet1 worksheet (named as VBA) related code editor, double-click on the Sheet1 (VBA) on the left side of the editor.

4) Click the drop-down part of the (General) and choose Worksheet.

Select Worksheet from the drop down (on the left side). When you will select Worksheet, all worksheet related pre-built functions will be available to you.

5) In the same way, from the right-side tab, choose the Change option. You will find that two codes are appearing in the code editor. Select and delete the lower part code.

Delete the SelectionChange related code from the editor. It is not necessary. I am suggesting to delete this part just for making the editor clean for work.

6) Now insert the code below between these lines:

Private Sub Worksheet_Change(ByVal Target As Range)

‘ Insert code here

End Sub

Source code

' Auto Date
Dim Cell As Range
For Each Cell In Target
    If Cell.Column = Range("A:A").Column Then
        If Cell.Value <> "" Then
            Cells(Cell.Row, "B").Value = Now
        Else
            Cells(Cell.Row, "B").Value = ""
        End If
    End If
Next Cell

When Worksheet is selected, Change is selected, input the above code in the function area.

7) We are done. Now save your workbook pressing CTRL + S or from the File tab. You will see the following Microsoft message. This message will show if your workbook is saved with .xlsx extension instead of .xlsm extension. Your workbook now has VBA code, so it cannot be saved with .xlsx extension.

Select No as we want to save the workbook as a macro-enabled file type.

You cannot save a workbook with macro codes with .xlsx extension.

8) Choose Excel Macro-Enabled Workbook (.xlsm) option from the Save as type menu and save the file newly.

Choose the Excel Macro-Enabled Workbook (.xlsm) from the options.

So, this is the whole procedure to auto-populate a cell when a change occurs in the adjacent cell.

Now the big question. How will you use this code for your specific purpose?

Say you want to use this code for another worksheet and for specific cell ranges. Like the image below.

You want to use this code for VBA2 worksheet and for the columns C and D.

We will now modify the above code for different cell ranges.

Here are the steps:

1) Open the Visual Basic editor and you might find that already the previous code is showing while the previous worksheet is selected.

Excel VBA editor will show the existing codes and related worksheet when you will open again the VBA editor.

2) Double click on the worksheet on which you want to apply your VBA code. On the right side, choose Worksheet on the left and on the right choose the Change option from the drop-down.

To select a code editor for a specific worksheet, you have to double-click on it.

3) Now use the following code:

Source code

' Auto Date
Dim Cell As Range
For Each Cell In Target
	If Cell.Column = Range("C:C").Column Then
		If Cell.Value <> "" Then
			Cells(Cell.Row, "D").Value = Now
		Else
			Cells(Cell.Row, "D").Value = ""
		End If
	End If
Next Cell

I am showing the places where you will make the changes.

See where I am making the changes: C:C and D.

Auto-populating dates in some specific cells (not the entire column)

Look at the following spreadsheet. Say, in this worksheet, people can only update data on cell range D3: D22, and adjacent cells on column E will record the date of last changes.

This time we are going to show how to auto-populate dates of some specific cells (D3: E22), not the entire column.

1) Use the following code:

Source code

Private Sub Worksheet_Change(ByVal Target As Excel.Range)
	With Target
		If .Count > 1 Then Exit Sub
		If Not Intersect(Range("D3:D22"), .Cells) Is Nothing Then
			Application.EnableEvents = False
			If IsEmpty(.Value) Then
				.Offset(0, 1).ClearContents
			Else
				With .Offset(0, 1)
					.NumberFormat = "dd mmm yyyy hh:mm:ss"
					.Value = Now
				End With
			End If
			Application.EnableEvents = True
		End If
	End With
End Sub

Input this code and then see the magic.

2) Here is the result

Looks good.

This code will impact only the cell range D3: E22. Not any cell beyond this range.

If your developer tab is not showing

1) At first, check out whether your worksheet is showing the Developer tab in the tab list.

No developer tab is showing in the following image.

2) Click on the File tab.

3) Now choose Options from the left side menu.

4) Excel Options dialog box will appear. Choose Customize Ribbon and then on the right side of the dialog box, you see the Developer option is unchecked.

5) Check the box and click OK on the dialog box.

6) You see, now the Developer tab is showing in the tab list.

Download Working File

So, these are two pieces of code that you can use for your specific purposes. Do you know any better way to auto-populate dates in Excel when cells are updated? Let me know in the comment box.

Further Readings

• How to Insert Date in Excel (7 Simple Methods)
• How to Change Dates Automatically Using Formula in Excel
• Excel Automatically Enter Date When Data Entered (7 Easy Methods)
• How to Insert Dates in Excel Automatically (3 Simple Tricks)