I have a number of sub-forms on a form.  Is there any way for a change on a sub-form to trigger a "LastUpdated" field on the master form?  Frankly, I consider them all part of the form, but because of many-to-many relationships, I find it necessary to use a plethora of sub-forms.

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Reply from Alex Hedley:

Take a look at the HasModule = False on the Form.

You could call a Function:
Me.Parent.<Name Of Function>
or
Forms("NameOfParent").<Name Of Function>