Google Commerce Search Deployment Guide - Manual (Page 11)

regular feeds, but the items are not inserted into the index. If there are errors, you will see them
on the feed status page.
The test feeds are a good way to work out any issues with your formatting when adding any
new fields to the feed. Once the feed submits without error you should be able to submit a
production feed without problem.
Product status and data quality
One your feed has been processed, new items are added to the index and updates to existing
items occur. This process may take several hours for a large feed. Existing items remain
searchable, so there is no downtime while the feed is processing. Each item is processed
individually, so some changes may be seen before others--the feed is not processed completely
and then “cut-over.”
To verify the status of any item, you can check the Products tab in Merchant Center. When an
item is done processing and in a searchable state, you should see a green check mark in the
Commerce Search column:
You can search on the product id to find details on specific products. Clicking on the individual
product link, you can view all of the attributes that were submitted:
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