Merge pull request #13284 from MicrosoftDocs/Identity-chrisda

Added Caution alert to Identity param 2

Author: chrisda

exchange/exchange-ps/ExchangePowerShell/Get-DlpSensitiveInformationTypeRulePackage.md

@@ -60,6 +60,8 @@ The Identity parameter specifies the sensitive information type rule package tha
 - LocalizedName
 - GUID (from the Identity value)
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: SensitiveInformationTypeRuleCollectionIdParameter
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-DynamicDistributionGroup.md

@@ -139,6 +139,8 @@ The Identity parameter specifies the dynamic distribution group that you want to
 - Email address
 - GUID
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: DynamicGroupIdParameter
 Parameter Sets: Identity

exchange/exchange-ps/ExchangePowerShell/Get-DynamicDistributionGroupMember.md

@@ -58,6 +58,8 @@ The Identity parameter specifies the dynamic distribution group. You can use any
 - Email address
 - GUID
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: DynamicDistributionGroupMemberIdParameter
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-EOPProtectionPolicyRule.md

@@ -62,6 +62,8 @@ The Identity parameter specifies the rule that you want to view. You can use any
 
 By default, the available rules (if they exist) are named Standard Preset Security Policy and Strict Preset Security Policy.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: RuleIdParameter
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-EXOCasMailbox.md

@@ -103,6 +103,8 @@ Otherwise, you can use any other value that uniquely identifies the mailbox. For
 
 You can't use this parameter with the Anr, ExternalDirectoryObjectId, PrimarySmtpAddress, or UserPrincipalName parameters.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: String
 Parameter Sets: Identity

exchange/exchange-ps/ExchangePowerShell/Get-EXOMailbox.md

@@ -125,6 +125,8 @@ Otherwise, you can use any value that uniquely identifies the mailbox. For examp
 
 You can't use this parameter with the Anr, ExternalDirectoryObjectId, PrimarySmtpAddress, or UserPrincipalName parameters.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: String
 Parameter Sets: Identity

exchange/exchange-ps/ExchangePowerShell/Get-EXOMailboxFolderPermission.md

@@ -69,6 +69,8 @@ Otherwise, you can use any value that uniquely identifies the mailbox. For examp
 
 You can't use this parameter with the ExternalDirectoryObjectId, PrimarySmtpAddress, or UserPrincipalName parameters.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: String
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-EXOMailboxFolderStatistics.md

@@ -181,6 +181,8 @@ Otherwise, you can use any value that uniquely identifies the mailbox or mail us
 
 You can't use this parameter with the ExternalDirectoryObjectId, PrimarySmtpAddress, or UserPrincipalName parameters.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: String
 Parameter Sets: (All)

exchange/exchange-ps/ExchangePowerShell/Get-EXOMailboxPermission.md

@@ -107,6 +107,8 @@ Otherwise, you can use any value that uniquely identifies the mailbox. For examp
 
 You can't use this parameter with the ExternalDirectoryObjectId, PrimarySmtpAddress, or UserPrincipalName parameters.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: String
 Parameter Sets: Identity

exchange/exchange-ps/ExchangePowerShell/Get-EXOMailboxStatistics.md

@@ -132,6 +132,8 @@ Otherwise, you can use any value that uniquely identifies the mailbox. For examp
 
 You can't use this parameter with the ExternalDirectoryObjectId, PrimarySmtpAddress, or UserPrincipalName parameters.
 
+**Caution**: The value $null or a non-existent value for the Identity parameter returns *all* objects as if you ran the Get- command without the Identity parameter. Verify any lists of values for the Identity parameter are accurate and don't contain non-existent $null values.
+
 ```yaml
 Type: String
 Parameter Sets: (All)