Excel VBA update a cell from a single checkbox, with the checkbox linked to a randomly selected unique identifier and return a Timestamp

Hi,  in MS Excel I have 10,000 rows of data in 35 columns in Worksheet A, the unique identifier for each row is contained in Column C called the SaleID which is alphanumeric (sometimes an Integer or string).

I have set up in Worksheet B a simple form that acts like a report, extracting data from Worksheet A, primarily using Vlookup, based on any manually entered SaleID in cell A1 of Worksheet B.

I've tried my best at writing some code but it's completely baffling me and can't seem to figure it out...please can you help me with VBA code that works as follows (please follow through with the example at the bottom as well):

1. In Worksheet B, I enter a random SaleID in cell A1;
2. Then when I click on the single checkbox in cell B1 of Worksheet B the code should look at the SaleID in cell A1 and then go to Worksheet A and Column C and find the the associated SaleID for example row 254, and write, and permanently record, in Column D of the same row, either a 'Yes' (i.e., the checkbox is ticked) or a 'No' (i.e., the checkbox is not ticked);
3. Then each time a row in Column D in Worksheet A is updated to 'Yes', Column E, in Worksheet A, permanently records the Date and Time (24hr clock) (in format dd/mm/yyyy hh:mm) of the last update (which is different to =Now() and =Today(), in that these two functions change each time I open the workbook).
4. Lastly, in Column F, of Worksheet A, in each row I would like to calculate in days how much time has expired since the last update in Column E.

For example...

                                             WorkSheet A                                                         Worksheet B
Row          Col. C       Col D.              Col E.                 Col. F                       Col. A                 Col. B
1               SaleID      Listed           Updated                 +/-                        N09786        'Checkbox'
2               7428           Yes       01/02/2015 22:15    209 days
3               xx6250       No
254          N09786      Yes       20/08/2015  09:38      9 days

I know this is quite challenging and perhaps difficult to program but I've yet to come across any example that someone has been able to do this.  Please do let me know if there are any questions.

Thank you in advance for all your help.

Best Regards
Jacque de LacyAsked:
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Roy CoxGroup Finance ManagerCommented:
An example workbook would be helpful
Jacque de LacyAuthor Commented:
Sorry about that...please find the attached example...
Roy CoxGroup Finance ManagerCommented:
Jacque  there is still no attachment. Have you clicked upload file after selecting it?
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Jacque de LacyAuthor Commented:
Let me try it again...
Martin LissOlder than dirtCommented:
Try the attached workbook. BTW don't worry about my use of Now. I believe it will change only if used in a formula.
Martin LissOlder than dirtCommented:
Here's a second version where I created a dynamic Named Range called SaleIDs and used it to create a dropdown list in cell B1 on sheet Worksheet B.
Jacque de LacyAuthor Commented:

Thanks for the sending this through to me, it's working very well but unfortunately there's a couple of tweaks required.  

The ranges specified are absolute and not defined names, so when I insert a column or row the macro stops working.

Also, I can't seem to change the names of any of the headings in Worksheet A without an error debugging.

Lastly, if I manually change Column D in Worksheet A, Column F doesn't appear to update automatically.

Best Regards
Martin LissOlder than dirtCommented:
The ranges specified are absolute and not defined names, so when I insert a column or row the macro stops working.
In the "a" version of the workbook I posted I added the SaleIDs named range that's dynamic as long as it's only one column.

I can't modify the other Named Ranges because they refer to ='Y:\Users\attic\Documents\Mujtaba\eBay Sales\[Auction Catalogues Inventory.xlsm]Data Tables (''Data_T'')'!..." and obviously I don't have that path. However the following describes how to create dynamic formulas.

Named Ranges
To correct the column header change error add line 2 to the following sub.
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Row = 1 Then Exit Sub
If Not Intersect(Target, Range("D:D")) Is Nothing Then
    If Cells(Target.Row, "E") <> "" Then
        Cells(Target.Row, "F") = DateDiff("d", Cells(Target.Row, "E"), Now) & " days"
    End If
    Cells(Target.Row, "E") = Format(Now, "dd/mm/yyyy hh:mm")
End If
End Sub

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For the last problem I assume you were typing in "yes" rather than "Yes" but change line 7 and see if that helps.
Sub FindSaleID()
Dim rngFound As Range

Set rngFound = Sheets("Worksheet A").Range("C:C").Find(What:=Sheets("Worksheet B").Range("B1"), LookIn:=xlValues)
If Not rngFound Is Nothing Then
    If ActiveSheet.Shapes("Check Box 1").ControlFormat.Value = xlOn Then
        UCase(Sheets("Worksheet A").Cells(rngFound.Row, "D")) = "YES"
        Sheets("Worksheet A").Cells(rngFound.Row, "D") = "No"
    End If
    MsgBox "SaleID not found"
    Exit Sub
End If

End Sub

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Martin LissOlder than dirtCommented:
I'm glad I was able to help.

In my profile you'll find links to some articles I've written that may interest you.
Marty - MVP 2009 to 2015, Experts-Exchange Top Expert Visual Basic Classic 2012 to 2014
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