An asterisk * in the title indicates the field is mandatory.
If a field has a default value, it is shown in the Description column.
If the field type is an array, the Field Name has a .[n] suffix, where n is the array index placeholder.
Object and array field names are listed to provide context. If a field belongs to an object or an array, the full field name is shown in dot separated notation.

Title	Description	Details
Name *		Field Name: Name Type: String MaxLength: 1024
Color *		Field Name: Color Type: Integer
IsValid *		Field Name: IsValid Type: Boolean
PSComputerName		Field Name: PSComputerName Type: String MaxLength: 1024
MailboxOwnerId *		Field Name: MailboxOwnerId Type: String MaxLength: 1024
ObjectState *		Field Name: ObjectState Type: String MaxLength: 1024
RunspaceId		Field Name: RunspaceId Type: String MaxLength: 1024
Guid *		Field Name: Guid Type: String MaxLength: 1024
PSShowComputerName		Field Name: PSShowComputerName Type: Boolean
Identity *	The Identity parameter specifies the name of the message category to be retrieved.	Field Name: Identity Type: String MaxLength: 1024

Model: device/exchangeonline/MessageCategory