@Robin Jha Thank you for reaching out to us, as far I am aware you need to have Microsoft 365 (formerly, Office 365) activity log connector which will help to get info from SharePoint/Exchange/Teams - https://learn.microsoft.com/en-us/azure/sentinel/data-connectors/microsoft-365
Let me know if this info helps to achieve the above ask. Also, refer to this https://learn.microsoft.com/en-us/azure/sentinel/connect-data-sources?tabs=azure-portal which has list of connectors available with Sentinel which you can use to ingest data to Sentinel as per your requirements.
Let me know if you have any further questions, feel free to post back.