Search-AdminAuditLog
Use the Search-AdminAuditLog cmdlet to search the contents of the administrator audit log.
For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax (https://technet.microsoft.com/library/bb123552.aspx).
Syntax
Search-AdminAuditLog
[[-Cmdlets <MultiValuedProperty>]
[-DomainController <Fqdn>]
[-EndDate <ExDateTime>]
[-IsSuccess <$true | $false>]
[-ObjectIds <MultiValuedProperty>]
[-Parameters <MultiValuedProperty>]
[-ResultSize <Int32>]
[-StartDate <ExDateTime>]
[-StartIndex <Int32>]
[-UserIds <MultiValuedProperty>]
[-ExternalAccess <$true | $false>]
[<CommonParameters>]Description
If you run the Search-AdminAuditLog cmdlet without any parameters, up to 1,000 log entries are returned by default.
Note: In Exchange Online, if you don't use the StartDate or EndDate parameters, only results from the last 14 days are returned.
You need to be assigned permissions before you can run this cmdlet. Although this topic lists all parameters for the cmdlet, you may not have access to some parameters if they're not included in the permissions assigned to you. To find the permissions required to run any cmdlet or parameter in your organization, see Find the permissions required to run any Exchange cmdlet (https://technet.microsoft.com/library/mt432940.aspx).
Examples
-------------------------- Example 1 --------------------------
Search-AdminAuditLog -Cmdlets New-RoleGroup, New-ManagementRoleAssignmentThis example finds all the administrator audit log entries that contain either the New-RoleGroup or the New-ManagementRoleAssignment cmdlet.
-------------------------- Example 2 --------------------------
Search-AdminAuditLog -Cmdlets Set-Mailbox -Parameters UseDatabaseQuotaDefaults, ProhibitSendReceiveQuota, ProhibitSendQuota -StartDate 01/24/2018 -EndDate 02/12/2018 -IsSuccess $trueThis example finds all the administrator audit log entries that match the following criteria:
Cmdlets: Set-Mailbox
Parameters: UseDatabaseQuotaDefaults, ProhibitSendReceiveQuota, ProhibitSendQuota
StartDate: 01/24/2018
EndDate: 02/12/2018
The command completed successfully
-------------------------- Example 3 --------------------------
$LogEntries = Search-AdminAuditLog -Cmdlets Write-AdminAuditLog; $LogEntries | ForEach { $_.CmdletParameters }This example displays all the comments written to the administrator audit log by the Write-AdminAuditLog cmdlet.
First, store the audit log entries in a temporary variable. Then, iterate through all the audit log entries returned and display the Parameters property.
-------------------------- Example 4 --------------------------
Search-AdminAuditLog -ExternalAccess $true -StartDate 09/17/2018 -EndDate 10/02/2018This example returns entries in the administrator audit log of an Exchange Online organization for cmdlets run by Microsoft datacenter administrators between September 17, 2018 and October 2, 2018.
Parameters
The Cmdlets parameter specifies the cmdlets you want to search for in the administrator audit log. Only the log entries that contain the cmdlets you specify are returned.
If you want to specify more than one cmdlet, separate each cmdlet with a comma.
| Type: | MultiValuedProperty |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
This parameter is available only in on-premises Exchange.
The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name (FQDN). For example, dc01.contoso.com.
| Type: | Fqdn |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019 |
The EndDate parameter specifies the end date of the date range.
Use the short date format that's defined in the Regional Options settings on the computer where you're running the command. For example, if the computer is configured to use the short date format mm/dd/yyyy, enter 09/01/2018 to specify September 1, 2018. You can enter the date only, or you can enter the date and time of day. If you enter the date and time of day, enclose the value in quotation marks ("), for example, "09/01/2018 5:00 PM".
| Type: | ExDateTime |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The ExternalAccess parameter returns only audit log entries for cmdlets that were run by a user outside of your organization. In Exchange Online, use this parameter to return audit log entries for cmdlets run by Microsoft datacenter administrators.
| Type: | $true | $false |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The IsSuccess parameter specifies whether only administrator audit log entries that indicated a success or failure should be returned. Valid values are $true and $false.
| Type: | $true | $false |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The ObjectIds parameter specifies that only administrator audit log entries that contain the specified changed objects should be returned. This parameter accepts a variety of objects, such as mailbox aliases, Send connector names, and so on.
If you want to specify more than one object ID, separate each ID with a comma.
| Type: | MultiValuedProperty |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The Parameters parameter specifies the parameters you want to search for in the administrator audit log. Only the log entries that contain the parameters you specify are returned. You can only use this parameter if you use the Cmdlets parameter.
If you want to specify more than one parameter, separate each parameter with a comma.
| Type: | MultiValuedProperty |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The ResultSize parameter specifies the maximum number of results to return. The default value is 1000. The maximum results to return is 250,000.
| Type: | Int32 |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The StartDate parameter specifies the start date of the date range.
Use the short date format that's defined in the Regional Options settings on the computer where you're running the command. For example, if the computer is configured to use the short date format mm/dd/yyyy, enter 09/01/2018 to specify September 1, 2018. You can enter the date only, or you can enter the date and time of day. If you enter the date and time of day, enclose the value in quotation marks ("), for example, "09/01/2018 5:00 PM".
| Type: | ExDateTime |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The StartIndex parameter specifies the position in the result set where the displayed results start.
| Type: | Int32 |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
The UserIds parameter specifies that only the administrator audit log entries that contain the specified ID of the user who ran the cmdlet should be returned.
If you want to specify more than one user ID, separate each ID with a comma.
| Type: | MultiValuedProperty |
| Position: | Named |
| Default value: | None |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online |
Inputs
To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types (https://go.microsoft.com/fwlink/p/?LinkId=616387). If the Input Type field for a cmdlet is blank, the cmdlet doesn't accept input data.
Outputs
To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types (https://go.microsoft.com/fwlink/p/?LinkId=616387). If the Output Type field is blank, the cmdlet doesn't return data.
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