Google Base is retiring "One at a time" upload option, as most providers submit multiple items at a time, using data feed or API upload options. You can continue to submit items to Google Base, using data feed option. To keep listings fresh, items older than May 1st, 2009 with no expiration date or an expiration date far in the future’ll soon expire. Additionally, draft items and items uploaded through the "One at a time" option’ll be deleted after expiration. Once you've switched over to uploading items through a data feed, you must submit as often as necessary to keep the information in your listings accurate.