Message box when criteria is met

I have a table as a record source for a data entry form.  One of the fields in the table is OrderDate.  When the user enters a new record on the form and the new order date (today's date) is 5 years AFTER the last order date for that particular part number I want a popup message box to appear letting the user know that...

"Please review the order history for this part.  It was last produced (insert date last order date)”

How can I do this?  I know how to do a DMax for the order date but I don't know the syntax for 5 years prior to today's date.
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Anders Ebro (Microsoft MVP)Microsoft DeveloperCommented:
To get the date from 5 years ago you could use:

Open in new window

Then it would read as:
If Dmax([your expression here])<DateAdd("y",-5,Date()) then

Open in new window


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Gustav BrockCIOCommented:
It's not "y" but "yyyy" ...
Anders Ebro (Microsoft MVP)Microsoft DeveloperCommented:
Thank you Gustav. Your absolutely correct. Silly mistake on my part.
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