What's the recommended minimum frequency update for the local product inventory feed?

The recommended minimum frequency update for the local product inventory feed is daily because real-time accuracy is critical for maintaining consumer trust and ensuring a positive user experience. Since physical store inventory can fluctuate rapidly due to in-store purchases, returns, and restocks, providing Google with daily updates ensures that Local Inventory Ads accurately reflect what is currently available on the shelf, thereby preventing customers from visiting a location only to find an item is out of stock. Maintaining this high frequency of data synchronization allows Google's algorithms to effectively serve ads to local shoppers who are looking for immediate availability, which is the primary driver of the "Buy Online, Pick Up In Store" (BOPIS) and foot-traffic models.