msgbox when no match to search

[Guest]

I have a search box on a form. In the event no match is found for the search
criteria, I'd like to show a msgbox that lists possible causes/solutions.
How would I go about that?

 

[Guest]

Just for the sake of anyone else facing the same problem, I did resolve it
and thought I'd post the solution. It was a simple one that popped into my
head in the middle of the night.
I set a condition on the macro to display a msgbox if the field being
searched([txtLast]) did not equal the search criteria ([txtSearch]).
The condition reads:
[txtLast]<>[txtSearch]
and the message box text was set under the msgbox action.