Get-MgReportMailboxUsageMailboxCount     
	Get the total number of user mailboxes in your organization and how many are active each day of the reporting period. A mailbox is considered active if the user sent or read any email.
Note
To view the beta release of this cmdlet, view Get-MgBetaReportMailboxUsageMailboxCount
Syntax
Get (Default)
Get-MgReportMailboxUsageMailboxCount
    -Period <string>
    -OutFile <string>
    [-ResponseHeadersVariable <string>]
    [-Break]
    [-Headers <IDictionary>]
    [-HttpPipelineAppend <SendAsyncStep[]>]
    [-HttpPipelinePrepend <SendAsyncStep[]>]
    [-PassThru]
    [-Proxy <uri>]
    [-ProxyCredential <pscredential>]
    [-ProxyUseDefaultCredentials]
    [<CommonParameters>]
		GetViaIdentity
	  
	Get-MgReportMailboxUsageMailboxCount
    -InputObject <IReportsIdentity>
    -OutFile <string>
    [-ResponseHeadersVariable <string>]
    [-Break]
    [-Headers <IDictionary>]
    [-HttpPipelineAppend <SendAsyncStep[]>]
    [-HttpPipelinePrepend <SendAsyncStep[]>]
    [-PassThru]
    [-Proxy <uri>]
    [-ProxyCredential <pscredential>]
    [-ProxyUseDefaultCredentials]
    [<CommonParameters>]
Description
Get the total number of user mailboxes in your organization and how many are active each day of the reporting period. A mailbox is considered active if the user sent or read any email.
Examples
Example 1: Code snippet
Import-Module Microsoft.Graph.Reports
Get-MgReportMailboxUsageMailboxCount -Period $periodId
This example shows how to use the Get-MgReportMailboxUsageMailboxCount Cmdlet.
Parameters
-Break
Wait for .NET debugger to attach
Parameter properties
| Type: | System.Management.Automation.SwitchParameter | 
| Default value: | False | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-Headers
Optional headers that will be added to the request.
Parameter properties
| Type: | System.Collections.IDictionary | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | True | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-HttpPipelineAppend  
		SendAsync Pipeline Steps to be appended to the front of the pipeline
Parameter properties
| Type: | Microsoft.Graph.PowerShell.Runtime.SendAsyncStep[] | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-HttpPipelinePrepend  
		SendAsync Pipeline Steps to be prepended to the front of the pipeline
Parameter properties
| Type: | Microsoft.Graph.PowerShell.Runtime.SendAsyncStep[] | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-InputObject 
		Identity Parameter To construct, see NOTES section for INPUTOBJECT properties and create a hash table.
Parameter properties
| Type: | Microsoft.Graph.PowerShell.Models.IReportsIdentity | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
					GetViaIdentity 
					
				  
				| Position: | Named | 
| Mandatory: | True | 
| Value from pipeline: | True | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-OutFile 
		Path to write output file to
Parameter properties
| Type: | System.String | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | True | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-PassThru 
		Returns true when the command succeeds
Parameter properties
| Type: | System.Management.Automation.SwitchParameter | 
| Default value: | False | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-Period
Usage: period='{period}'
Parameter properties
| Type: | System.String | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
Get
| Position: | Named | 
| Mandatory: | True | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-Proxy
The URI for the proxy server to use
Parameter properties
| Type: | System.Uri | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-ProxyCredential 
		Credentials for a proxy server to use for the remote call
Parameter properties
| Type: | System.Management.Automation.PSCredential | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-ProxyUseDefaultCredentials   
		Use the default credentials for the proxy
Parameter properties
| Type: | System.Management.Automation.SwitchParameter | 
| Default value: | False | 
| Supports wildcards: | False | 
| DontShow: | False | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
-ResponseHeadersVariable  
		Optional Response Headers Variable.
Parameter properties
| Type: | System.String | 
| Supports wildcards: | False | 
| DontShow: | False | 
| Aliases: | RHV | 
Parameter sets
(All)
| Position: | Named | 
| Mandatory: | False | 
| Value from pipeline: | False | 
| Value from pipeline by property name: | False | 
| Value from remaining arguments: | False | 
CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.
Inputs
Microsoft.Graph.PowerShell.Models.IReportsIdentity
{{ Fill in the Description }}
System.Collections.IDictionary
{{ Fill in the Description }}
Outputs
System.Boolean
{{ Fill in the Description }}
Notes
COMPLEX PARAMETER PROPERTIES
To create the parameters described below, construct a hash table containing the appropriate properties. For information on hash tables, run Get-Help about_Hash_Tables.
INPUTOBJECT <IReportsIdentity>: Identity Parameter
[Date <DateTime?>]: Usage: date={date}
[DeviceManagementExportJobId <String>]: The unique identifier of deviceManagementExportJob
[DirectoryAuditId <String>]: The unique identifier of directoryAudit
[EndDateTime <DateTime?>]: Usage: endDateTime={endDateTime}
[Filter <String>]: Usage: filter='{filter}'
[GroupId <String>]: Usage: groupId='{groupId}'
[IncludedUserRoles <String>]: Usage: includedUserRoles='{includedUserRoles}'
[IncludedUserTypes <String>]: Usage: includedUserTypes='{includedUserTypes}'
[ManifestId <String>]: The unique identifier of manifest
[OperationId <String>]: The unique identifier of operation
[Period <String>]: Usage: period='{period}'
[PrintUsageByPrinterId <String>]: The unique identifier of printUsageByPrinter
[PrintUsageByUserId <String>]: The unique identifier of printUsageByUser
[PrinterId <String>]: Usage: printerId='{printerId}'
[ProvisioningObjectSummaryId <String>]: The unique identifier of provisioningObjectSummary
[SignInId <String>]: The unique identifier of signIn
[Skip <Int32?>]: Usage: skip={skip}
[SkipToken <String>]: Usage: skipToken='{skipToken}'
[StartDateTime <DateTime?>]: Usage: startDateTime={startDateTime}
[Top <Int32?>]: Usage: top={top}
[UserId <String>]: Usage: userId='{userId}'
[UserRegistrationDetailsId <String>]: The unique identifier of userRegistrationDetails