With the tab “List Errors Products” you can see all the products rejected by eBay and understand why they’ve been rejected.
If you click on “Fix it”, you can read an advice by 202
If you click on Exclude, the product will be excluded from the synchronization, if you don’t want to fix immediately the error;
If you click on the question mark, you will be redirect on the Help section of the 202 ecommerce site. Then, you can read a more exhaustive explanation of the problem and our advices to fix it.