SMART Migration supports “Rate Limit Management”
Rate Limit Management is designed by Microsoft to address one of the most common challenges when interacting with SharePoint Online and Microsoft Graph — API throttling. Throttling occurs when Microsoft detects that a client is sending too many requests within a short period, which can trigger HTTP 429 (“Too Many Requests”) or 503 (“Service Unavailable”) responses. These interruptions can cause delays, retries, or even failures in data processing workflows.
Our Rate Limit Management solution works by continuously inspecting the HTTP response headers returned from SharePoint and Graph. These headers provide advance signals when the service is nearing its request limits. By reading these values in real time, the system can dynamically adjust its request rate — spacing or queuing further calls before Microsoft’s throttling rules are enforced. This allows us to prevent throttling conditions proactively, rather than reacting after they occur.
This proactive approach ensures that the “conversation” with SharePoint and Graph remains smooth, stable, and uninterrupted. As a result, methods like ExecuteQueryRetry() — which normally have to wait and retry after throttling responses — rarely need to perform any retries at all. The outcome is a system that is not only faster but also far more predictable in its performance, especially during large-scale migrations, bulk updates, or intensive integration processes.
