how do i save the last update date of the data in a form in access

[Jeff Boyce]

Maro

You'll need to include code that adds the current ("last") date to a control
that you've bound to a field that you've added to the table that's behind
your form.

The code could be something like:

Me!txtLastUpdated = Now()

You could add this to the form's BeforeUpdate event, after first validating
the data entered on the form to confirm that an update actually occurred.