One of the difficulties with building quality keyword lists is that even though longer tailed keywords are in general better, and easier to rank for, they also tend to have fewer products available as well. This can sometimes lead to your post displaying an error that no products were found. With PHPZon it shows up in the form of that nasty red box. If you use PHPZon youve likely seen it.
This is not only ugly and sends your visitors running but also doesn’t help that post make you any money either. So instead of changing your keywords you can edit the PHPZon error template and add in some code to be displayed whenever no product is found. I personally chose to drop an adsense ad into the form. The file you need to edit is /public_html/wp-content/plugins/phpZon/templates/phpzon.error.html You can open this file in notepad, go ahead and delete all of the code inside, and replace with whatever you want. Some possibilities include adsense, more phpbay code pulling a product you commonly sell,CPA offers and so on.
The great news is that you can also change PHPBay from displaying “no products were found” you will find the error template for PHPBay at /public_html/wp-content/plugins/phpBay/forms/form.no.results.php Again just open the file in notepad and drop your code into the file replacing the old code with some form of monetization.