I have placed this question/issue a few times and have received some really great help! I have not found an answer as of yet and am having an issue asking the question the correct way. I'll attempt again:
I have a piece of code that evaluates info from a data feed against information that is in a data base.
If the information in a specific row within a column is different than the info in the feed, the DB field entry is updated. However, if that field is empty and evaluated the script updates the empty cell with the info from the feed, BUT it skips the messaging process.
So if $old_prodName is empty in the Database, this process does not work to then display the message.