what role is required to access Office365>Security and Compliance >Audit log search, to generate audit report without having a O365 Admin role

Hi @Yiru Chen ,

You have to be assigned the View-Only Audit Logs or Audit Logs role in Exchange Online to search the audit log. By default, these roles are assigned to the Compliance Management and Organization Management role groups on the Permissions page in the Exchange admin center. Note global administrators in Office 365 and Microsoft 365 are automatically added as members of the Organization Management role group in Exchange Online. To give a user the ability to search the audit log with the minimum level of privileges, you can create a custom role group in Exchange Online, add the View-Only Audit Logs or Audit Logs role, and then add the user as a member of the new role group. For more information, see Manage role groups in Exchange Online.

Note: If you assign a user the View-Only Audit Logs or Audit Logs role on the Permissions page in the Security & Compliance Center, they won't be able to search the audit log. You have to assign the permissions in Exchange Online. This is because the underlying cmdlet used to search the audit log is an Exchange Online cmdlet.

Reference:
Requirements to search the audit log

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