Your shopping feed file expires after 30 days unless refreshed or updated.

The statement is True because shopping feed files are typically set to expire after 30 days unless they are refreshed or updated. This expiration period ensures that the feed contains up-to-date product information, such as availability, pricing, and other attributes, which is crucial for accurate advertising and listing. If the feed is not refreshed or updated within the 30-day period, it may lead to errors or outdated information being shown in the advertising platform, which could negatively affect the performance of the shopping campaign. Therefore, regular updates to the feed are necessary to maintain its validity and ensure the smooth running of the campaign.