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Document metadata fields in eDiscovery (Premium)

Tip

eDiscovery (preview) is now available in the new Microsoft Purview portal. To learn more about using the new eDiscovery experience, see Learn about eDiscovery (preview).

The following table lists the metadata fields for documents in a review set in a case in Microsoft Purview eDiscovery (Premium). For more information about searchable properties when searching Microsoft 365 content locations when you're collecting data for an eDiscovery (Premium) case, see Keyword queries and search conditions for Content Search.

This table provides the following information:

  • Field name and Display field name: The name of the metadata field and the name of the field that's displayed when viewing the file metadata of a selected document in a review set. Some metadata fields aren't included when viewing the file metadata of a document. These fields are highlighted with an asterisk (*).
  • Searchable field name: The name of the property that you can search for when running a review set query.
  • Exported field name: The name of the metadata field that included when documents are exported.
  • Description: A description of the metadata field.

Note

The Keywords field in review set search uses Keyword Query Language (KQL). The fields listed in the Searchable field name column can be used in the Keywords field in a review set search to form complex queries without you having to use the query builder. For more information about KQL, see Keyword Query Language syntax reference.

Field name and Display field name Searchable field name Exported field name Description
Attachment Content ID AttachmentContentId Not exported Attachment content ID of the item.
Attorney client privilege score AttorneyClientPrivilegeScore Not exported Attorney-client privilege model content score.
Author Author Doc_authors Author from the document metadata.
BCC Bcc Email_bcc Bcc field for message types. The format is DisplayName <SMTPAddress>.
CC Cc Email_cc Cc field for message types. The format is DisplayName <SMTPAddress>.
Channel Name Channel ChannelName This field is the Teams channel name. Only applies to Microsoft Teams content.
Compliance labels ComplianceLabels Compliance_labels Retention labels applied to content in Office 365.
Compound Path CompoundPath Compound_path Human readable path that describes the source of the item.
Content* Content Not exported Extracted text of the item.
Conversation Body ConversationBody Not exported Conversation body of the item.
Conversation ID ConversationId Conversation_ID Conversation ID from the message. For Teams 1:1 and group chats, all transcript files and their family items within the same conversation share the same Conversation ID. For more information, see eDiscovery (Premium) workflow for content in Microsoft Teams.
Conversation Family ID ConversationFamilyID ConversationFamilyID The ID that identifies individual elements of a conversation and the related items in the conversation.
Conversation Index Not searchable Conversation_index Conversation index from the message.
Conversation Name Not searchable ConversationName This field depends on content type.
Teams 1:1 chat: first 40 characters of first message.
Teams 1:N chat: Name of group chat; if not available, the first 40 characters of the first message.
Teams Channel Post: Post title or announcement subhead; if not available, the first 40 characters of the first message.
Conversation Pdf Time ConversationPdfTime Not exported Date when the PDF version of the conversation was created.
Conversation Redaction Burn Time ConversationRedactionBurnTime Not exported Date when the PDF version of the conversation was created for Chat.
Conversation Topic ConversationTopic Not exported Conversation topic of the item.
Conversation Type ConversationType ConversationType The type of chat conversation. Values are:
Teams 1:1 and group chats and all Viva Engage conversations: Group
Teams channels and private channels: Channel
Contains Deleted Message ContainsDeletedMessage ContainsDeletedMessage Indicates if the chat transcript includes a deleted message
Contains Edited Message ContainsEditedMessage ContainsEditedMessage Indicates if the chat transcript includes an edited message
Teams Announcement Title TeamsAnnouncementTitle TeamsAnnouncementTitle Title from a teams announcement.
N/A N/A Converted_file_path The path of the converted export file. For internal Microsoft use only.
Custodian Custodian Custodian Name of the custodian the item was associated with.
Date Date Date Date is a computed field that depends on the file type.

Email: Sent date
Email attachments: Last modified date of the document; if not available, the parent's sent date
Embedded documents: Last modified date of the document; if not available, the parent's last modified date
SPO documents (includes modern attachments): Last modified date of the document; if not available, SharePoint last modified date
Non-Office 365 documents: Last modified date
Meetings: Meeting start date
VoiceMail: Sent date
IM: Sent date
Teams: Sent date

Document comments DocComments Doc_comments Comments from the document metadata.
Document company Not searchable Doc_company Company from the document metadata.
Document date created CreatedTime Doc_date_created Create date from document metadata.
DocIndex* Not searchable Not exported The index in the family. -1 or 0 means it's the root.
Document keywords Not searchable Doc_keywords Keywords from the document metadata.
Document modified by Not searchable Doc_modified_by The user who last modified the document from document metadata.
Document revision Doc_Version Doc_Version Revision from the document metadata.
Document subject Not searchable Doc_subject Subject from the document metadata.
Document template Not searchable Doc_template Template from the document metadata.
DocLastSavedBy Not searchable Doc_last_saved_by The name of the user who last saved the document.
Dominant theme DominantTheme Dominant_theme Dominant theme as calculated for analytics.
Duplicate subset Not searchable Duplicate_subset Group ID for exact duplicates.
EmailAction* Not searchable Email_action Values are None, Reply, or Forward; based on the subject line of a message.
Email Delivery Receipt Requested Not searchable Email_delivery_receipt Email address supplied in Internet Headers for delivery receipt.
Importance EmailImportance Email_importance Importance of the message: 0 - Low; 1 - Normal; 2 - High
Ignored processing errors ErrorIgnored Error_Ignored Error was ignored and not remediated.
EmailInternetHeaders EmailInternetHeaders Email_internet_headers The full set of email headers from the email message
EmailLevel* Not searchable Email_level Indicates a message's level within the email thread it belongs to; attachments inherit its parent message's value.
Email Message ID Not searchable Email_message_ID Internet message ID from the message.
EmailReadReceiptRequested Not searchable Email_read_receipt Email address supplied in Internet Headers for read receipt.
Email Security EmailSecurity Email_security Security setting of the message: 0 - None; 1 - Signed; 2 - Encrypted; 3 - Encrypted and signed.
Email Sensitivity EmailSensitivity email_sensitivity Sensitivity setting of the message: 0 - None; 1 Personal; 2 - Private; 3 - CompanyConfidential.
Email set EmailSet Email_set Group ID for all messages in the same email set.
EmailThread* Not searchable Email_thread Position of the message within the email set; consists of node IDs from the root to the current message and are separated by periods (.).
N/A N/A Export_native_path The path of the exported file.
Extracted content type Not searchable Native_type Extracted content type, in the form of mime type; for example, image/jpeg
N/A N/A Extracted_text_path The path to the extracted text file in the export.
ExtractedTextLength* Not searchable Extracted_text_length Number of characters in the extracted text.
FamilyDuplicateSet* Not searchable Family_duplicate_set Numeric identifier for families that are exact duplicates of each other (same content and all the same attachments).
Family ID FamilyId Family_ID Groups together attachments and extracted items from email and chats with its parent item. This includes the chat or email and all attachments and extracted items.
Family Size Not searchable Family_size Number of documents in the family.
File class FileClass File_class For content from SharePoint and OneDrive: Document.
For content from Exchange: Email or Attachment.
For content from Teams or Viva Engage: Conversations.
File ID FileId File_ID Document identifier unique within the case.
File system date created Not searchable File_system_date_created Created date from file system (only applies to non-Office 365 data).
File system date modified Not searchable File_system_date_modified Modified date from file system (only applies to non-Office 365 data).
File Type FileType Not exported File type of the item based on file extension.
Group ID GroupId Group_ID Groups together all items for email and documents. For email, this includes the message and all attachments and extracted items. For documents, this includes the document and any embedded items.
Has attachment EmailHasAttachment Email_has_attachment Indicates whether or not the message has attachments.
Has attorney HasAttorney Not exported True when at least one of the participants is found in the attorney list; otherwise, the value is False.
HasText* Not searchable Has_text Indicates whether or not the item has text; possible values are True and False.
Immutable ID Not searchable Immutable_ID This ID is used to uniquely identify a document within a review set. This field can't be used in a review set search and the ID can't be used to access a document in its native location.
Inclusive type InclusiveType Inclusive_type Inclusive type calculated for analytics: 0 - not inclusive; 1 - inclusive; 2 - inclusive minus; 3 - inclusive copy.
In Reply To ID Not searchable In_reply_to_ID In reply to ID from the message.
InputFileExtension Not searchable Original_file_extension The original file extension of the file.
InputFileID Not searchable Input_file_ID The file ID of the top level item in the review set. For an attachment, this ID will be the ID of the parent. This can be used to group families together.
Is modern attachment IsModernAttachment Not exported This file is a modern attachment or linked file.
Is from document version IsFromDocumentVersion Not exported Current document is from a different version of another document.
Is email attachment IsEmailAttachment Not exported This item is from an email attachment that shows up as an attached item to the message.
Is inline attachment IsInlineAttachment Not exported This was attached inline and shows up in the body of the message.
Is Representative IsRepresentative Is_representative One document in every set of exact duplicates is marked as representative.
Item class ItemClass Item_class Item class supplied by exchange server; for example, IPM.Note
Last modified date LastModifiedDate Doc_date_modified Last modified date from document metadata.
Load ID LoadId Load_ID The ID of the load set in which the item was added to a review set.
Location Location Location String that indicates the type of location that documents were sourced from.

Imported Data - Non-Office 365 data
Teams - Microsoft Teams
Exchange - Exchange mailboxes
SharePoint - SharePoint sites
OneDrive - OneDrive accounts

Location name LocationName Location_name String that identifies the source of the item. For exchange, this will be the SMTP address of the mailbox; for SharePoint and OneDrive, the URL for the site collection.
N/A N/A Marked_as_pivot This file is the pivot in a near duplicate set.
Marked as representative MarkAsRepresentative Not exported One document from each set of exact duplicates is marked as representatives.
Meeting End Date MeetingEndDate Meeting_end_date Meeting end date for meetings.
Meeting Start Date MeetingStartDate Meeting_start_date Meeting start date for meetings.
Message kind MessageKind Message_kind The type of message to search for. Possible values:

contacts
docs
email
externaldata
faxes
im
journals
meetings
microsoftteams
(returns items from chats, meetings, and calls in Microsoft Teams)
notes
posts
rssfeeds
tasks
voicemail

Modern Attachment Parent ID Not searchable ModernAttachment_ParentId The Immutable ID of the document's parent.
Native Extension NativeExtension Native_extension Native extension of the item.
Native file name NativeFileName Native_file_name Native file name of the item.
Native file size Size Native_size Number of bytes of the native item.
NativeMD5 Not searchable Native_MD5 MD5 hash (128-bit hash value) of the file stream.
NativeSHA256 Not searchable Native_SHA_256 SHA256 hash (256-bit hash value) of the file stream.
ND/ET Sort: Excluding attachments NdEtSortExclAttach ND_ET_sort_excl_attach Concatenation of the email thread (ET) set and Near-duplicate (ND) set. This field is used for efficient sorting at review time. A D is prefixed to ND sets and an E is prefixed to ET sets.
ND/ET Sort: Including attachments NdEtSortInclAttach ND_ET_sort_incl_attach Concatenation of an email thread (ET) set and near-duplicate (ND) set. This field is used for efficient sorting at review time. A D is prefixed to ND sets and an E is prefixed to ET sets. Each email item in an ET set is followed by its appropriate attachments.
Near Duplicate Set Not searchable ND_set Items that are similar to the pivot document share the same ND_set.
O365 authors Not searchable O365_authors Author from SharePoint.
O365 created by Not searchable O365_created_by Created by from SharePoint.
O365 date created Not searchable O365_date_created Created date from SharePoint.
O365ModifiedDate Not searchable O365_date_modified The date a document (or document version) collected from SharePoint or OneDrive for Business was modified. This is the same modified date as the one displayed in the version history in the SharePoint and OneDrive user experience.
O365 modified by Not searchable O365_modified_by Modified by from SharePoint or OneDrive.
Other custodians DedupedCustodians Deduped_custodians List of custodians of documents that are exact duplicates (for email, based on content; for documents, based on hash).
Other file IDs DedupedFileIds Deduped_file_IDs List of file IDs of documents that are exact duplicates (for email, based on content; for documents, based on hash).
Other paths Dedupedcompoundpath Deduped_compound_path List of compound paths of documents that are exact duplicates (email: based on content, documents: based on hash).
Parent ID ParentId Parent_ID ID of the item's parent.
ParentNode Not searchable Parent_node The closest preceding email message in the email thread.
Participant domains ParticipantDomains Email_participant_domains List of all domains of participants of a message.
Participants Participants Email_participants List of all participants of a message; for example, Sender, To, Cc, Bcc.
Pivot ID PivotId Pivot_ID The ID of a pivot.
Potentially privileged PotentiallyPrivileged Potentially_privileged True if attorney-client privilege detection model considers the document potentially privileged
Processing status ProcessingStatus Error_code Processing status after the item was added to a review set.
Read percentile ReadPercentile Not exported Read percentile for the document based on Relevance.
Received Received Email_date_received The date and time the email was received in UTC.
Recipient Count Not searchable Recipient_count Number of recipients in the message.
Recipient domains RecipientDomains Email_recipient_domains List of all domains of recipients of a message.
Recipients Recipients Email_recipients List of all recipients of a message (To, Cc, Bcc).
N/A N/A Redacted_file_path The path of the redacted replacement file in the export.
N/A N/A Redacted_text_path The path of the redacted text file replacement in the export. For internal Microsoft use only.
Relevance tag Case issue 1 Not searchable Relevance_tag_case_issue_1 Relevance tag Case issue 1 from Relevance.
Relevance score RelevanceScore Not exported Relevance score of a document based on Relevance.
Relevance tag RelevanceTag Not exported Relevance score of a document based on Relevance.
Representative ID RepresentativeId Not exported Numeric identifier of each set of exact duplicates.
N/A N/A Row_number The row number of the item in the load file.
Sender Sender Email_sender Sender (From) field for message types. The format is DisplayName <SmtpAddress>.
Sender/Author SenderAuthor Not exported Calculated field comprised of the sender or author of the item.
Sender domain SenderDomain Email_sender_domain Domain of the sender.
Sent Sent Email_date_sent Sent date of the message.
Chats: Beginning date from the transcript
Set ID Not searchable Set_ID Documents of similar content (ND_set) or email within the same email thread (Email_set) share the same Set_ID.
Set Order: Inclusive First SetOrderInclusivesFirst Set_order_inclusives_first Sorting field - email and attachments: counter-chronological; documents: pivot first then by descending similarity score.
SimilarityPercent Not searchable Similarity_percent Indicates how similar a document is to the pivot of the near duplicate set.
Subject Subject Email_subject Subject of the message.
Subject/Title SubjectTitle Not searchable Calculated field comprised of the subject or title of the item.
Tags Tags Tags Tags applied in a review set.
Team Name TeamName TeamName Teams: Name of team
Viva Engage: Community name
Themes list ThemesList Themes_list Themes list as calculated for analytics.
Thread ID ThreadId Thread_ID The Thread ID from email messages, Teams conversations, and Viva Engage conversations. For email messages, all reply messages and attachments share the same Thread ID. For Teams 1:1 and group chats, all transcript files and their associated items within the same conversation share the same Thread ID. For more information, see View documents in a review set.
Title Title Doc_title Title from the document metadata. Title from the document metadata. For Teams and Viva Engage content, this is the value from the ConversationName property.
To To Email_to To field for message types. The format is DisplayName<SmtpAddress>
Unique in email set UniqueInEmailSet Not exported False if there's a duplicate of the attachment in its email set.
Version Group ID Not searchable Version_Group_Id Groups together the different versions of the same document.
VersionNumber Not searchable Version_Number The version number of a document collected from SharePoint or OneDrive for Business. This is the same version number as the one displayed in the version history in the SharePoint and OneDrive user experience.
Was Remediated WasRemediated Was_Remediated True if the item was remediated, otherwise False.
Word count WordCount Word_count Number of words in the item.