Prevent throttling in your application by using RateLimit headers in SharePoint Online

Throttling is a feature utilized in SharePoint Online to maintain optimal performance and resource utilization. It makes sure that the number of API calls or operations within a time window are controlled, leading to a balanced consumption of resources and preventing overuse. In case your application gets throttled, the service returns HTTP status codes 429 ("Too many requests") or 503 ("Server Too Busy"), resulting in failed requests.

To prevent throttling in your SharePoint Online application, Microsoft recommends using RateLimit headers. This blog post by Microsoft 365 Developer Blog dives into the specifics and provides guidance on how to mitigate throttling issues by using RateLimit headers. By implementing this technique, developers can optimize performance and limit the chances of their application getting throttled, ensuring smooth operation.

The post Prevent throttling in your application by using RateLimit headers in SharePoint Online originally appeared on Microsoft 365 Developer Blog.