What is the impact of incorrectly specifying the 'availability' attribute in a Google Merchant Center product feed on ad performance?

Incorrectly specifying the 'availability' attribute in a Google Merchant Center product feed has a significant negative impact on ad performance and can even lead to disapprovals. The 'availability' attribute indicates whether a product is in stock and ready to ship. If this attribute is inaccurate (e.g., listing a product as 'in stock' when it's actually 'out of stock'), it creates a poor user experience. Customers clicking on an ad expecting to purchase an available product will be frustrated when they find it's not actually available, leading to a high bounce rate and low conversion rates. Google prioritizes user experience; therefore, products with inaccurate availability information are likely to receive lower ad rankings, fewer impressions, and a higher cost per click. In severe cases, consistently inaccurate availability information can result in product disapprovals or even account suspension. Google actively crawls landing pages to verify availability and compares it to the feed. Discrepancies between the feed and the landing page are a major cause of disapprovals. Therefore, it's critical to maintain accurate and up-to-date availability information in the product feed to ensure optimal ad performance and avoid penalties.