Hi All!
When I grant a user permission then I found the below audit log.
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<roleid>1073741830</roleid><principalid>24</principalid><scope>3385278E-DF2F-484E-9FA6-E1CF89D5AF1F</scope><operation>ensure added</operation>
=======
I want to know what's the <scope>'s ID:3385278E-DF2F-484E-9FA6-E1CF89D5AF1F meaning?
I thank the Scope is the operation that where I have granted the user permission. (eg. list, site or sitecollection )
Then I searched the TechNet forum and I found the below answer.
https://social.technet.microsoft.com/Forums/en-US/ef0c4d43-15d0-434d-93af-2041f0d39cfe/how-to-understand-the-audit-log?forum=sharepointgeneralprevious
Scope: Is the scope where this change is effective
So I think my thought is right the change is effective on my site collcetion. The scope ID:3385278E-DF2F-484E-9FA6-E1CF89D5AF1F should be the sitecollection ID,because I grantted the user permission in site collection level.
But I found that the Scope's ID isn't equal to the real site collcetion ID. And I think I have found everywhere in the site colleciton to found the Scope's ID by 【SharePoint Manager 2013 Online】but I didnot found the scope ID: 3385278E-DF2F-484E-9FA6-E1CF89D5AF1F
's location.

※The real site collection's ID is in above which is 603516ca.............
So I want to know where is the scope id. And what is the <scope>'s real meaning.
I want to get a detailed answer.
Thanks.
Tobey