Learn about retention for Teams - Microsoft Purview (compliance) (2023)

  • Article
  • 13 minutes to read

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Note

If you are seeing a message in Teams that your chats or messages have been deleted by a retention policy, see Teams messages about retention policies.

The information on this page is for IT administrators who manage these retention policies.

The information in this article supplements Learn about retention because it has information that's specific to Microsoft Teams messages.

For other workloads, see:

  • Learn about retention for SharePoint and OneDrive
  • Learn about retention for Yammer
  • Learn about retention for Exchange

Tip

If you're not an E5 customer, you can try all the premium features in Microsoft Purview for free. Use the 90-day Purview solutions trial to explore how robust Purview capabilities can help your organization manage data security and compliance needs. Start now at the Microsoft Purview compliance portal trials hub. Learn details about signing up and trial terms.

What's included for retention and deletion

Note

Retention policies support shared channels. Any shared channels inherit retention settings from the parent team.

Retention policies also support messages posted with the chat with yourself feature.

Teams chats messages, channel messages, and private channel messages can be deleted by using retention policies for Teams, and in addition to the text in the messages, the following items can be retained for compliance reasons: Video clips, embedded images, tables, hypertext links, links to other Teams messages and files, and card content.

(Video) Find and retain cloud attachments with Microsoft Purview

Newly created call data records, which are system-generated messages that contain metadata for meetings and calls are also supported.

These chat messages and private channel messages include all the names of the people in the conversation, and channel messages include the team name and the message title (if supplied).

Code snippets, recorded voice memos from the Teams mobile client, thumbnails, announcement images, and reactions from others in the form of emoticons aren't retained when you use retention policies for Teams.

Emails and files that you use with Teams aren't included in retention policies for Teams. These items have their own retention policies.

How retention works with Microsoft Teams

Use this section to understand how your compliance requirements are met by backend storage and processes, and should be verified by eDiscovery tools rather than by messages that are currently visible in the Teams app.

You can use a retention policy to retain data from chats and channel messages in Teams, and delete these chats and messages. Behind the scenes, Exchange mailboxes are used to store data copied from these messages. Data from Teams chats is stored in a hidden folder in the mailbox of each user included in the chat, and a similar hidden folder in a group mailbox is used for Teams channel messages. These hidden folders aren't designed to be directly accessible to users or administrators, but instead, store data that compliance administrators can search with eDiscovery tools.

These mailboxes are, listed by their RecipientTypeDetails attribute:

  • UserMailbox: These mailboxes store message data for cloud-based Teams users.
  • MailUser: These mailboxes store message data for on-premises Teams users.
  • GroupMailbox: These mailboxes store message data for Teams standard channels.
  • SubstrateGroup: These mailboxes store message data for Teams shared channels.

Other mailbox types, such as RoomMailbox that is used for Teams conference rooms, aren't supported for Teams retention policies.

Teams uses an Azure-powered chat service as its primary storage for all messages (chats and channel messages). If you need to delete Teams messages for compliance reasons, retention policies for Teams can delete messages after a specified period, based on when they were created. Messages are then permanently deleted from both the Exchange mailboxes where they stored for compliance operations, and from the primary storage used by the underlying Azure-powered chat service. For more information about the underlying architecture, see Security and compliance in Microsoft Teams and specifically, the Information Protection Architecture section.

Although this data from Teams chats and channel messages are stored in mailboxes, you must configure a retention policy for the Teams channel messages and Teams chats locations. Teams chats and channel messages aren't included in retention policies that are configured for Exchange user or group mailboxes. Similarly, retention policies for Teams don't affect other email items stored in mailboxes.

If a user is added to a chat, a copy of all messages shared with them are ingested into their mailbox. The created date of those messages doesn't change for the new user and remains the same for all users.

Note

If a user is included in an active retention policy that retains Teams messages and you delete a mailbox of a user who is included in this policy, the mailbox is converted into an inactive mailbox to retain the Teams data. If you don't need to retain this Teams data for the user, exclude the user account from the retention policy and wait for this change to take effect before you delete their mailbox.

After a retention policy is configured for chat and channel messages, a timer job from the Exchange service periodically evaluates items in the hidden mailbox folder where these Teams messages are stored. The timer job typically takes 1-7 days to run. When these items have expired their retention period, they are moved to the SubstrateHolds folder—another hidden folder that's in every user or group mailbox to store "soft-deleted" items before they're permanently deleted.

Messages remain in the SubstrateHolds folder for at least 1 day, and then if they're eligible for deletion, the timer job permanently deletes them the next time it runs.

Important

Because of the first principle of retention and since Teams chat and channel messages are stored in Exchange Online mailboxes, permanent deletion from the SubstrateHolds folder is always suspended if the mailbox is affected by another Teams retention policy for the same location, Litigation Hold, delay hold, or if an eDiscovery hold is applied to the mailbox for legal or investigative reasons.

While the mailbox is included in an applicable hold, Teams chat and channel messages that have been deleted will no longer be visible in the Teams app but will continue to be discoverable with eDiscovery.

(Video) Simplify regulatory compliance with Microsoft Purview Compliance Manager

After a retention policy is configured for chat and channel messages, the paths the content takes depend on whether the retention policy is to retain and then delete, to retain only, or delete only.

When the retention policy is to retain and then delete:

Learn about retention for Teams - Microsoft Purview (compliance) (1)

For the two paths in the diagram:

  1. If a chat or channel message is edited or deleted by a user during the retention period, the original message is copied (if edited) or moved (if deleted) to the SubstrateHolds folder. When a user deletes a Teams message, although the message disappears from the Teams app, the message doesn't go into the SubstrateHolds folder for 21 days. The message is stored in the SubstrateHolds folder for at least 1 day. When the retention period expires, the message is permanently deleted the next time the timer job runs (typically between 1-7 days).

  2. If a chat or channel message is not deleted by a user and for current messages after editing, the message is moved to the SubstrateHolds folder after the retention period expires. This action typically takes between 1-7 days from the expiry date. When the message is in the SubstrateHolds folder, it's stored there for at least 1 day, and then the message is permanently deleted the next time the timer job runs (typically between 1-7 days).

Note

Messages stored in mailboxes, including the hidden folders, are searchable by eDiscovery tools. Until messages are permanently deleted from the SubstrateHolds folder, they remain searchable by eDiscovery tools.

When the retention period expires and moves a message to the SubstrateHolds folder, a delete operation is communicated to the backend Azure chat service, that then relays the same operation to the Teams client app. Delays in this communication or caching can explain why, for a short period of time, users continue to see these messages in their Teams app.

In this scenario where the Azure chat service receives a delete command because of a retention policy, the corresponding message in the Teams client app is deleted for all users in the conversation. Sometimes, this behavior might seem unexpected because some of these users can be from another organization, have a retention policy with a longer retention period, or no retention policy assigned to them. For these users, copies of the messages are still stored in their mailboxes and remain searchable for eDiscovery until the messages are permanently deleted by another retention policy.

Important

Messages visible in the Teams app are not an accurate reflection of whether they are retained or permanently deleted for compliance requirements.

(Video) How to mark content as a regulatory record with retention labels in Microsoft Purview

When the retention policy is retain-only, or delete-only, the content's paths are variations of retain and delete.

Content paths for retain-only retention policy

  1. If a chat or channel message is edited or deleted by a user during the retention period: The original message is copied (if edited) or moved (if deleted) to the SubstrateHolds folder. When a user deletes a Teams message, although the message disappears from the Teams app, the message doesn't go into the SubstrateHolds folder for 21 days. The message is stored in the SubstrateHolds folder for at least 1 day. If the retention policy is configured to retain forever, the item remains there. If the retention policy has an end date for the retention period and it expires, the message is permanently deleted the next time the timer job runs (typically between 1-7 days).

  2. If the chat or channel message is not modified or deleted by a user and for current messages after editing during the retention period: Nothing happens before and after the retention period; the message remains in its original location.

Content paths for delete-only retention policy

  1. If the chat or channel message is edited or deleted by a user during the retention period: The original message is copied (if edited) or moved (if deleted) to the SubstrateHolds folder. When a user deletes a Teams message, although the message disappears from the Teams app, the message doesn't go into the SubstrateHolds folder for 21 days. The message is stored in the SubstrateHolds folder for at least 1 day and permanently deleted the next time the timer job runs (typically between 1-7 days).

  2. If a chat or channel message is not deleted by a user during the retention period: At the end of the retention period, the message is moved to the SubstrateHolds folder. This action typically takes between 1-7 days from the expiry date. The message is retained there for at least 1 day and then permanently deleted the next time the timer job runs (typically between 1-7 days).

Example flows and timings for retention policies

Use the following examples to see how the processes and timings explained in the previous sections apply to retention policies that have the following configurations:

  • Example 1: Retain-only for 7 years
  • Example 2: Retain for 30 days and then delete
  • Example 3: Delete-only after 1 day

For all examples that refer to permanent deletion, because of the principles of retention, this action is suspended if the message is subject to another retention policy to retain the item or it's subject to an eDiscovery hold.

Example 1: Retain-only for 7 years

On day 1, a user creates a chat or channel message.

On day 5, the user edits that message.

On day 30, the user deletes the current message.

Retention outcomes:

  • For the original message:

    • On day 5, the message is copied to the SubstrateHolds folder where it can still be searched with eDiscovery tools for a minimum of 7 years from day 1 (the retention period).
  • For the current (edited) message:

    • On day 30, the message is no longer displayed in the Teams app and moves to the SubstrateHolds folder after 21 days where it continues to be searchable with eDiscovery tools for a minimum of 7 years from day 1 (the retention period).

If the user had deleted the current message after the specified retention period, instead of within the retention period, the message would still be moved to the SubstrateHolds folder after 21 days. However, now the retention period has expired, the message would be permanently deleted there after the minimum of 1 day and then typically within 1-7 days.

Example 2: Retain for 30 days and then delete

On day 1, a user creates a chat or channel message.

On day 10, the user edits that message.

The user doesn't make further edits and doesn't delete the message.

(Video) Planning your Security Compliance with Microsoft Purview

Retention outcomes:

  • For the original message:

    • On day 10, the message is copied to the SubstrateHolds folder, where it can still be searched with eDiscovery tools.
    • At the end of the retention period (30 days from day 1), the message is permanently deleted typically within 1-7 days after the minimum of 1 day, and then won't be returned with eDiscovery searches.
  • For the current (edited) message:

    • At the end of the retention period (30 days from day 1), the message moves to the SubstrateHolds folder typically within 1-7 days, where it can still be searched with eDiscovery tools.
    • The message is then permanently deleted typically within 1-7 days after the minimum of 1 day, and then won't be returned with eDiscovery searches.
Example 3: Delete-only after 1 day

Note

Because of the short one-day duration of this configuration and retention processes that operate within a time period of 1-7 days, this section shows example timings that are within the typical time ranges.

On day 1, a user creates a chat or channel message.

Example retention outcome if the user doesn't edit or delete the message:

  • Day 5 (typically 1-7 days after the start of the retention period on day 2):

    • The message moves to the SubstrateHolds folder and remains there for at least 1 day where it can still be searched with eDiscovery tools.
  • Day 9 (typically 1-7 days after a minimum of 1 day in the SubstrateHolds folder):

    • The message is permanently deleted and then won't be returned with eDiscovery searches.

As this example shows, although you can configure a retention policy to delete messages after just one day, the service undergoes multiple processes to ensure a compliant deletion. As a result, a delete action after 1 day could take 16 days before the message is permanently deleted so that it's no longer returned in eDiscovery searches.

Skype for Business and Teams interop chats

When a Skype for Business chat comes into Teams, it becomes a message in a Teams chat thread and is ingested into the appropriate mailbox. Teams retention policies will apply to these messages from the Teams thread.

However, if conversation history is turned on for Skype for Business and from the Skype for Business client side that history is being saved into a mailbox, that chat data isn't handled by a Teams retention policy. For this content, use a retention policy that's configured for Skype for Business.

Messages and external users

When external users are included in a meeting or chat that your organization hosts:

  • If an external user joins by using a guest account in your tenant, any Teams messages are stored in both your users' mailbox and a shadow mailbox that's granted to the guest account. However, retention policies aren't supported for shadow mailboxes, even though they can be reported as included in a retention policy for the entire location (sometimes known as an "organization-wide policy").

  • If an external user joins by using an account from another Microsoft 365 organization, your retention policies can't delete messages for this user because they're stored in that user's mailbox in another tenant. For the same meeting or chat however, your retention policies can delete messages for your users.

When a user leaves the organization

If a user who has a mailbox in Exchange Online leaves your organization and their Microsoft 365 account is deleted, their chat messages that are subject to retention are stored in an inactive mailbox. The chat messages remain subject to any retention policy that was placed on the user before their mailbox was made inactive, and the contents are available to an eDiscovery search. For more information, see Learn about inactive mailboxes.

(Video) Microsoft Purview and Exchange

If the user stored any files in Teams, see the equivalent section for SharePoint and OneDrive.

Configuration guidance

If you're new to configuring retention in Microsoft 365, see Get started with data lifecycle management.

If you're ready to configure a retention policy for Teams, see Create and configure retention policies.

FAQs

How do I create a retention policy in Microsoft purview? ›

From the Microsoft Purview compliance portal, select Data lifecycle management > Microsoft 365 > Retention Policies. Select New retention policy to start the Create retention policy configuration, and name your new retention policy.

What is retention policy in Microsoft teams? ›

What is a retention policy? Retention policies are created by a company or organization and manage how long data is stored in the Microsoft apps you use. In Teams, these policies dictate how long messages show in a chat or channel and even how long a file is stored in Teams, OneDrive, and SharePoint.

What is the minimum number of retention policies that you should create Teams? ›

It is not possible to apply a single retention policy to a Team; at least two separate policies will be required – one policy for the Team channel posts of EVERY team, and one or more policies for the content captured in SPO sites (files) or groups of sites.

What is the difference between Microsoft retention policy and backup? ›

In IT, “backup” means making sure the content can be recovered and made available to users in case the need arises. “Retention” on the other hand, to the IT Guy just means “how long before the backed-up content can be deleted.”

How do I apply retention policy to all users? ›

Use the new EAC to apply a retention policy to multiple mailboxes. Sign in to the new Exchange admin center and navigate to Recipients > Mailboxes. In the list view, select the multiple mailboxes to apply the same retention policy.

How do you do a retention policy? ›

Go to Recipients > Mailboxes. In User Mailbox, click Mailbox features. In the Retention policy list, select the policy you want to apply to the mailbox, and then click Save.

How long are files retained in Teams? ›

How long do files and data remain available for in Microsoft Teams (free)?
Item TypeDuration Available
Files shared in the chatDetermined by user*
Calendar itemsDetermined by user*
Call history30 days
User location90 days
11 more rows

How long does it take for Teams retention policy to take effect? ›

After you apply the new retention policy to mailboxes in Step 4, it can take up to 7 days in Exchange Online for the new retention settings to be applied to the mailboxes. This is because a process called the Managed Folder Assistant processes mailboxes at least once every 7 days.

What is a good document retention policy? ›

Document retention guidelines typically require businesses to store records for one, three or seven years. In some cases, you will need to keep the records forever. If you're unsure what to keep and what to shred, your accountant, lawyer and state record-keeping agency may provide guidance.

What is a standard retention policy? ›

What is a retention policy. A retention policy (also called a 'schedule') is a key part of the lifecycle of a record. It describes how long a business needs to keep a piece of information (record), where it's stored and how to dispose of the record when its time. It seems very straightforward, and in many ways it is.

What is the difference between label policy and retention policy? ›

A retention policy is used to assign retention settings at a container (site or mailbox) level whereas a retention label is used to assign retention settings at an item (folder, email, or document) level.

Which factors should retention policies consider? ›

7 Factors to Consider Before Creating an Email Retention Policy
  • Business Needs. ...
  • Legal and Regulatory Requirements. ...
  • Organizational Culture. ...
  • Approaches to Scope and Length of Electronic Record Retention. ...
  • Litigation Holds. ...
  • Automation. ...
  • Implementation.

What are the 3 types of backups? ›

There are mainly three types of backup: full, differential, and incremental.

What is best practice for backup retention? ›

Best practices for backup retention policies

Always consider backup datasets, type and frequency. Identify and address restoration scenarios. Keep incremental backups within a reasonable size. Keep the last backup in an easily accessible spot.

What are the five different types of backups? ›

The most common backup types are a full backup, incremental backup and differential backup. Other backup types include synthetic full backups and mirroring. In the debate over cloud vs. local backup, there are some types of backup that are better in certain locations.

What is o365 compliance retention policy? ›

Microsoft 365 retention policy is a set of automated rules that helps Admins comply with the regulatory guidelines, manage corporate data and save costs on storage. Office 365 retention policy should not be confused with backup, archive, deletion protection, or retention labels.

How do you apply retention labels to a team? ›

In SharePoint (and Teams)—but not OneDrive), you can create a view of the library that contains the Labels column or Item is a Record column.
...
Create a view that contains retention labels
  1. At the top of any column, select the down arrow. ...
  2. In the Edit view columns pane, select the box for Retention label.

How do I know if my retention policy is working? ›

Check the retention policy option that applies to the folder in which the items are stored. To do this, right-click the folder, and then scroll down to Assign policy. Check Retention Policy and Expire fields to see whether an item is set an expiration date.

What are the four parts of retention? ›

Four Building Blocks of the Retention Process
  • Building Block 1: Recruit To Retain. Use behavior based interviewing (see last quarter's issue). ...
  • Building Block 2: Make Everyone A Part Of The Family. ...
  • Building Block 3: Develop Current and Future Competencies. ...
  • Building Block 4: Learn From The Past With An Eye On The Future.
Feb 4, 2002

What are the five stages of a retention program? ›

5 Key Steps to Building a Retention Strategy
  • Create accountability.
  • Determine your true cost of turnover.
  • Develop a communication plan.
  • Choose an engagement tool.
  • Plan how to act on feedback.
Mar 9, 2022

What is the first step in the retention process? ›

The first step in developing a retention plan is to use exit interviews and/or surveys to find out the satisfaction level of employees. Once you have the data, you can begin to write the plan, making sure it is tied to the organizational objectives.

Does Teams keep old versions of files? ›

Once the file is selected, click on the ellipses that appear in the highlighted section (the three gray dots) and select “version history” from the drop down menu. This will give you access to view, restore, and delete previous versions of your file.

How do I stop files being deleted from Teams? ›

Click Permissions and Management and go to Permissions for this document library. Next, you need to select Members group and Stop Inheriting Permissions. Go to Edit User Permissions. To prevent users from deleting Teams files, change the permission to Read.

How long does Microsoft retain data? ›

Subscription Retention

If a paid subscription ends or is terminated, Microsoft retains customer data stored in Microsoft 365 in a limited-function account for 90 days to enable the subscriber to extract the data. After the 90-day retention period ends, Microsoft disables the account and deletes the customer data.

How do Teams stay available longer? ›

Set a status duration
  1. Select your profile picture, select your current status, and then select Duration.
  2. Under Status, select the status you want to show going forward. Under Reset status after, select the amount of time you want that status to last. ...
  3. Select Done.

How long are Microsoft Teams inactivity? ›

Microsoft Teams automatically switches your status from active if your account is inactive for at least five minutes. This usually happens when the program is running in the background or when you leave it open but without activity such as scrolling or typing.

How often do retention policies run? ›

Key Concepts To Know About Retention Policies

When a Retention Policy is applied to a mailbox, it also applies to the online archive mailbox (if it exists). Retention Policies are processed by a scheduled task that runs every 7 days. This means emails could be kept up to 7 days past the expiration period.

What records should be kept for 7 years? ›

Keep records for 7 years if you file a claim for a loss from worthless securities or bad debt deduction. Keep records for 6 years if you do not report income that you should report, and it is more than 25% of the gross income shown on your return. Keep records indefinitely if you do not file a return.

What records must be kept for 10 years? ›

Legal Documents

For example, documents such as bills of sale, permits, licenses, contracts, deeds and titles, mortgages, and stock and bond records should be kept permanently. However, canceled leases and notes receivable can be kept for 10 years after cancellation.

What is the difference between data retention and archiving? ›

Data retention refers to the length of time that data is kept by the organization that gathered it. Data archiving describes the intentional preservation of data in a format that makes it easy for collaborators to refer back to. And data disposal is the process of deleting data in a safe and responsible manner.

What is a 25% retention? ›

A retention bonus, also called retention pay or a retention package, is a lump sum of money a company pays to an employee to stay with the company for a specific amount of time. Usually, retention bonuses are sizable amounts of money, ranging from 10% to 25% of an employee's base pay.

What are examples of retention period? ›

The retention period begins at a specific time depending on the type of record. For example, the retention period for a financial record starts on July 1 of the following year. For another example, the retention period for the records of an employment search begins on the date that the hiring decision is made.

What is the purpose of a retention plan? ›

A retention strategy is a plan that organizations create and use to reduce employee turnover, prevent attrition, increase retention, and foster employee engagement.

What are the 4 types of Labelling? ›

There are four major types of labels that companies and small businesses are using for their products and operations: brand labels, informative labels, descriptive labels, and grade labels.

Which four items are records that are covered by our retention policy? ›

This policy covers the following types of electronic and physical records:
  • Email conversations.
  • Meeting minutes.
  • Spreadsheets.
  • Documents.
  • Presentations.
  • Any scanned documents submitted by employees or external sources.

What happens if you delete a retention policy? ›

What happens to the content on the site once the Retention policy is disabled/deleted? Assuming there are no other Retention policies in effect, the content on the site, including the PHL will remain and the PHL will no longer be updated for a 30-day grace period.

What are the principles of retention? ›

Retention Principle

The principle is defined as “An organization shall maintain its information for an appropriate time, taking into account its legal, regulatory, fiscal, operational, risk, and historical requirements.” In other words, keep what you need and dispose of what you do not.

What are the most important retention factors? ›

Research shows that six important factors in employee retention are people and culture, acknowledgement at work, providing meaningful benefits, ongoing training, workplace environment, and mission and values alignment.

What is the 321 principle of backup? ›

Here's what the 3-2-1 backup rule involves: 3: Create one primary backup and two copies of your data. 2: Save your backups to two different types of media. 1: Keep at least one backup file offsite.

What do you mean by backup retention? ›

Backup retention, also referred to as data retention is defined as a policy for retaining data to meet the legal and business needs of an organization. Creating a backup retention policy allows users to determine which backups will be kept, what storage types will be used and how long the data will be stored.

Which backup method is fastest? ›

Full Backup

But it's also the quickest to restore from because all the files you need are contained in the same backup set. Full backups on a regular schedule require the most storage out of each method.

What is the difference between Microsoft retention and backup? ›

In IT, “backup” means making sure the content can be recovered and made available to users in case the need arises. “Retention” on the other hand, to the IT Guy just means “how long before the backed-up content can be deleted.”

What are the three 3 factors to consider for successful backups? ›

For backup strategies to be successful the process has to successfully execute in three areas; backup, recovery, and time.

What three components would you include in a record retention policy? ›

A document retention policy should address the creation, the distribution, the storage and the retrieval of documents within the organization.

What are the two most popular methods to back up files? ›

Dropbox and Box are two of the most used file sync services that also let you retain previous versions of updated files. Many cloud backup services let you use their applications and storage resources without cost for a limited amount of data -- usually about 5 GB.

What are 6 types of backups? ›

To understand backup needs, the business requirements that drive them need to be understood.
...
Once the business needs have been determined, we must understand which option meets those requirements.
  • Snapshot/Redirect-on-write. ...
  • Clone. ...
  • Full. ...
  • Differential. ...
  • Incremental. ...
  • Change Block/Delta Tracking.
Oct 28, 2021

What are the 2 types of storing the data? ›

There are two main types of digital data storage: Direct-attached storage and network-based storage. Each type can accommodate a range of devices, so we'll look at the general types first and then delve more into specific data storage devices.

How do I set up an outlook retention policy? ›

In the folder pane, right-click the message or folder for which you want to apply a policy and select Assign policy. Select the archive or retention policy you want to assign to the message or folder. Tip: If you want a message to adhere to the same policy as the folder it's in, select Use parent folder policy.

How do I set retention policy on a shared mailbox? ›

Shared Mailbox Retention Policy
  1. Click Office 365 tab.
  2. Select Management from the left navigation section and click Mailbox Management.
  3. Under Shared Mailbox Tasks, select Shared Mailbox Retention Policy.
  4. Choose the O365 tenant to which you wish to apply the settings and give the necessary inputs.

How do I create an archive retention policy in Office 365? ›

In the Microsoft Purview compliance portal, go to Data lifecycle management > Exchange (legacy) > MRM Retention policies. On the MRM Retention policies page, select New policy. In the Name box, type a name for the new retention policy; for example, Alpine House Archive and Deletion Policy. Select + Add tag.

How do I set retention policy in SharePoint? ›

Creating a Retention Policy in SharePoint Online

Browse to the Security & Compliance Center, then select Data Management > Retention. Under Delete, click Manage document deletion policies for SharePoint Online and OneDrive for Business. Then, click Deletion Policies and choose New Item.

What is a good email retention policy? ›

In general, standard business correspondence should be retained for a 1 year minimum, or 5 to 10 years on the safest side. Certain legal, financial, and contract items will require between 5 and 10 years of retention. Exceptions requiring longer retention can be set with no expiration date and archived.

What is a typical email retention policy? ›

Most federal and state email retention laws require email data to be retained for between 3 and 7 years, although there are exceptions and certain types of data may have do be retained for much longer, even indefinitely.

What is the 90 day email retention policy? ›

What This Means for You: Starting January 1, you have 90 days to decide whether "sent" or "received" e- mails should be kept. If yes, there are a couple of ways to do so (discussed below). If something doesn't need to be kept, you may either delete it or simply leave it in your Inbox or Sent Items folder.

How many retention policies can you apply to a mailbox? ›

Note: You can only apply one retention policy to a mailbox.

How does o365 retention policy work? ›

You create and configure a retention policy that automatically retains and then deletes content after five years, and apply the policy to all SharePoint and Microsoft 365 Groups instances. You create and configure a retention label that automatically retains content for ten years.

What is retention policy? ›

A retention policy (also called a 'schedule') is a key part of the lifecycle of a record. It describes how long a business needs to keep a piece of information (record), where it's stored and how to dispose of the record when its time. It seems very straightforward, and in many ways it is.

How often do retention policies run Office 365? ›

Key Concepts To Know About Retention Policies

When a Retention Policy is applied to a mailbox, it also applies to the online archive mailbox (if it exists). Retention Policies are processed by a scheduled task that runs every 7 days. This means emails could be kept up to 7 days past the expiration period.

What is an archive retention policy? ›

Users can access the archive in the same way that they access their primary mailboxes. The Archive Policy defines when an email will be moved from your personal mailbox to the online archive. The Retention Policy defines when an email will be deleted.

What are the two reasons that following the record retention policy is important? ›

A data retention policy defines why and how you store data, for how long, and then how you dispose of it. Data retention policies play a pivotal role in data management, enabling regulatory compliance, legal defenses, and disaster recovery. They can also help keep mission-critical data at employees' fingertips.

How does SharePoint retention work? ›

The retention label marks items as a record and it's locked. Only when the record is unlocked, does a copy of the last version get stored in the Preservation Hold library. The retention label marks items as a regulatory record, which always prevents the item from being edited or deleted.

Videos

1. Help fulfill regulatory requirements with Microsoft Purview Communication Compliance
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2. Retention Labels vs Site Retention Policies in SharePoint and Teams
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3. Learn Live - Implement compliance for Microsoft Teams
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Introduction: My name is Greg O'Connell, I am a delightful, colorful, talented, kind, lively, modern, tender person who loves writing and wants to share my knowledge and understanding with you.