How do I display a message box if an error occurs and stop the error too? I
want to skip/stop an error if a user enters in a wrong 'ssn' from a 'ssn
combobox', and have a message pop up "ssn is not listed" in lieu of
'end..debug'. I am sure this is possible, but I am at best an experienced
'newbie'.

Example: I have a user form in which a user can select from a 'ssn combobox'
an ssn. Also the user can tab into the 'ssn combobox', and type the
appropriate numbers. The problem is if the user types in a 'ssn' that is not
in a database (hidden worksheet) which a macro is indexing-matching, then I
get an error message 'end..debug'.

What I've done thus far: I have used 'on error resume...', which works fine.
But I can't figure out how to get a message box to pop up and tell the user
"ssn isn't listed". And I played with the combobox properties and changed the
style to 'dropdownlist', but I found through testing that if I type '123'
wait a couple seconds and then type some more numbers '456', the selection
starts with the next number I typed (all ssns that start with 456, instead of
123456). So I changed the style back to 'dropdowncombo'.

End state: What I would like is that when the user enters a ssn that isn't
listed, a message box is displayed "ssn isn't listed", and for the error to
be skipped/stoppeed, as I don't want the user to get into the vba.

Please help.