Sharepoint Delta API 429 error due to unknow reasons
Hi All, We are getting 429 rate-limited responses from Graph API when fetching SharePoint via Delta APIs. The rate limited requests don’t resolve even after waiting for specified time and retrying for 3 times, so such requests fail causing data losses. If we are sending more requests than the allowed rate limit, we will get that reason in headers, but here no such reason is given which suggests that we don’t exceed rate limits and its some other unknown issue. As mentioned in the document highlighted in the this link; https://learn.microsoft.com/en-us/sharepoint/dev/general-development/how-to-avoid-getting-throttled-or-blocked-in-sharepoint-online#ratelimit-headers---preview there could be other reasons that could lead to rate limits. We make sure that we don't request the calls that exceed the count mentioned in RateLimit-Limit header. This makes it even harder to identify the exact cause. Any support related to this is appreciated!!