I have 2 worksheets. One is a entry page ('form') and the second a storage
for data ('database').

I have written a basic macro which enters the data from the form to the
database. Howerver I would like to add to the macro and get it to check 4
cells which are mandatory. I would like it to exit out of the macro to the
appropriate blank cell and display a message box to enter data. If the 4
cells have data then I would like it to continue the macro and enter data to
the database sheet.

Could someone please point me to a webpage with an example or explain what
code I need. I have been able to get the message box to come up for the first
cell but not sure how to then jump to the next mandatory one. Thanks
--
Hayley