To view the error log and the validation error

1. Go to the Magento Admin panel.
2. On the top navigation bar, point to the Wish menu.
   The menu appears as shown in the following figure:
   
3. Click the Manage Profile menu.
   The Wish Profile Listing page appears as shown in the following figure:
   
   On this page all the available profiles are listed.
4. Scroll down to the required profile.
5. In the Action column, click the arrow button, and then click Upload Products.
   The Product Manager page appears as shown in the following figure:
   
6. Click the INVALID button to view the validation error.
   The relevant error message appears as shown in the figure.
   
7. In the Actions column, click the Log link associated with the required product to view the corresponding error.
   The error message appears as shown in the following figure:
   
8. Correct the issues and then again repeat the process of validating and uploading the selected products.