That depends on the type of license you have. If you have a qualifying license, you can use audit log retention policies as detailed here: https://learn.microsoft.com/en-us/microsoft-365/compliance/audit-log-retention-policies?view=o365-worldwide
Office 365 Audit log retain for one year
Sajith Gopalakrishnan Hema
1,056
Reputation points
By default, Office 365 Audit Log will keep the log for 90 days. The requirement is to keep the audit log for one year. There is a power shell command for this. please advise.
SharePoint
SharePoint
A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
11,229 questions
2 answers
Sort by: Most helpful
-
Vasil Michev 118.7K Reputation points MVP Volunteer Moderator
2021-08-26T10:47:11.937+00:00 -
Elsie Lu_MSFT 9,801 Reputation points
2021-08-27T07:47:14.28+00:00 Hi @Sajith Gopalakrishnan Hema ,
In addtion to michev , you could refer to this article for more information:
Set-UnifiedAuditLogRetentionPolicy
If the answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.