Duration, Private Listing field(s) were ignored because eBay doesn't allow Revise the Item if it has sales, bids for Auction Type or less than 12 hours remain before the Item end

You can get this warning because of eBay restrictions on revising an Item’s Duration.

The Revise Item validation criteria are:

For fixed-price listings:
- you can’t change Item Listing Duration if there is one Item of the listings has been sold.

For auction type listings:
- you can’t change the Item Listing Duration if there is either a bid or the listing is ending within 12 hrs.