karlapitzen on "[Plugin: AdSense Integration WP QUADS] Ad codes"

I have tried a couple of plug-ins, and I finally got an ad posted using yours! However, it only worked on the widget. I had tried posting an ad at the beginning and end of my post, but when my account was fully activated, those two remained blank, while an ad appeared in the widget. One thing I did differently is that I posted the original code AdSense sent me in the widget, but had tried two that I had created for the others. Do you think that is the problem. If I use the original ad code in the other two, will different ads show up, or do I need to use unique codes for each? Also, can I use this plug-in if I decide to pursue becoming and amazon associate?

https://wordpress.org/plugins/quick-adsense-reloaded/