Hello,

I searched the forums and were able to find similar things but cannot
make it work for the action that I need.

I am trying to make B1 a mandatory cell if user puts data in A1. So if
there is data in A1 and B1 is empty, an error message should be
displayed on Save. I am sure it is not very hard but I am not much of
an Excel programmer.

Any help will be greatly appreciated...

Thanks in advance...