Wix places quotas on data requests made by your site. These quotas affect the processing time and volume of requests that sites can make, as well as the overall collection storage a site can have. Data quotas apply to anything making data requests on your site, including the Content Manager, Datasets, Wix Forms, and Velo’s Wix Data API. This article focuses on how these quotas work when using Velo. Check it out here: https://support.wix.com/en/article/velo-about-data-quotas
To learn about backend request quotas , see this article: https://support.wix.com/en/article/velo-about-backend-quotas