Delete this attribute from your product data
In this article
Why this issue is happening
One or more of the products in your product data uses an attribute that is not supported for that product. As a result, your offer has been disapproved.
How to fix your issue
Remove the unsupported attribute from your products to resolve the issue.
Fix products one by one directly in Merchant Center
Go to Products in Merchant Center, then select the Needs attention tab.
Use the filter icon 
above the table to find all products affected by your issue.
Click on the title of the product you want to fix, then click Edit product.
Remove the unsupported attribute.
Select Save.
Fix multiple products at once
Go to Products in Merchant Center, then select the Needs attention tab.
Use the filter icon above the table to find all products affected by your issue.
Select the Download icon 
to download a list (.csv) of all affected products for all issues or this particular issue.
Cross reference the downloaded list with your uploaded product data, and make sure to remove the unsupported attributes in the affected products.
Reupload your corrected product data to Merchant Center using your chosen upload method.
Next steps
After making the requested changes, check that you’ve fixed the issue by making sure it’s no longer listed on the “Needs attention” page.
Keep in mind: It may take some time for your change to be reflected on the “Needs attention” page.