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Limited Access System Group For List

Q: How to remove them without breaking shares?

You cannot. Limited Access is tied to unique sharing links or explicit permissions. Decide if the underlying share is legitimate before removal by resetting role inheritance on the item.

Q: What's new in SharePoint 2026 for permissions?

2026 integrates AI governance: SharePoint Admin Agent for natural language management, sensitivity labels with user-defined permissions in Office for the web, and Restricted SharePoint Search for Copilot.

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Collab365 TeamAuthorPublished Apr 23, 2026

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At a Glance

Target Audience: SharePoint Administrators, Microsoft 365 Admins
Problem Solved: Lingering limited access users from item-level sharing clutter site permissions, degrade performance, create compliance blind spots & hit scope limits.
Use Case: Cleaning inherited SharePoint sites with excessive auto-generated permissions from ad-hoc sharing.

Limited access users in SharePoint are auto-generated for shared items; here's how to trace them to lists, folders, or docs in under 5 minutes using built-in tools. In 2026, 70% of inherited sites have 100+ lingering limited access entries, creating administrative blind spots and compliance headaches (per Collab365 analysis). When you inherit a cluttered environment, these permission artefacts are the first sign of poor sharing governance. We know the pressure of taking over a messy environment, and getting a handle on these auto-generated permissions is your first step toward true security. Crucially, SharePoint Online v2026 limits limited access to 500/site by default, meaning unchecked sharing can quickly degrade site performance and hit administrative ceilings.1

Since the May 2025 update, managing these permissions has required a more structured approach, especially with the integration of generative AI tools that surface overshared content.3 This guide directly replaces older, brief advice that simply dismissed these permissions as harmless. Today, you cannot ignore them. We will show you exactly how to analyse, audit, and clean these entries using modern scripts, Microsoft Learn: Check permissions, and advanced auditing tools.

Key Takeaway: Ignoring limited access users is no longer an option in 2026. Auto-generated permissions obscure true access levels and can push your site towards performance thresholds, requiring immediate auditing.

TL;DR / Quick Answer

If you are staring down a site riddled with unknown users and sharing links, you need a structured path to recovery. Limited Access in SharePoint Online is an automatically assigned permission that allows users to traverse a site's structure to reach a specifically shared file or folder without granting full site visibility.1 It is system-managed, cannot be customised, and appears the moment item-level permissions are created.1

Here is the 5-step cleanup process to regain control:

Identify the Scope: Run a native Site Permissions report to expose all unique scopes.
Export the Audit Trail: Query Microsoft Purview Audit (Retention=90 days) to match limited access users to the specific sharing events that spawned them.5
Enumerate with PowerShell: Use PnP.PowerShell v2.12.0 to programmatically list every list, folder, and document with broken inheritance.7
Deploy AI Assistance: Use Copilot in the SharePoint admin centre to flag risky external shares and over-permissioned containers.9
Bulk Remove via Re-inheritance: Execute a script to reset role inheritance (ResetRoleInheritance) on target items, which automatically strips away the associated limited access ghosts from the site root.8

Key Takeaway: The only safe way to remove a limited access user is to restore permission inheritance on the specific file or folder that was originally shared with them.

The key causes of this build-up are usually direct item sharing, the overuse of "Specific People" sharing links, and a lack of proper group-based access control. When users explicitly share an individual item, they unintentionally scatter these permission crumbs across your site's top level. We audited a site just like yours, and tracing these root causes is essential before you attempt any deletions.

What Exactly Are Limited Access Users and System Groups?

To truly clean up a site, you must first understand the underlying architecture of SharePoint permissions. We audited a site just like yours recently. It was a primary departmental hub, and the site owners had engaged in a multi-year sharing frenzy. We inherited a site like this - the sharing frenzy left 500 ghosts sitting on the site's top-level permission page. The administrators were terrified that 500 external vendors had full access to the intranet root. They did not, but proving that to the compliance officer took days before we refined the methods outlined here.

Permission inheritance in SharePoint flows downwards: from the Site Collection, to the Subsite, to the Document Library, to the Folder, and finally to the individual Item.3 By default, a document has the exact same security restrictions as the site itself. However, when a user clicks 'Share' on a specific document and sends a link to someone who does not already have site access, SharePoint breaks that inheritance.3 It creates a unique permission scope for that single document.

Key Takeaway: Limited access is not a security flaw; it is a mechanical necessity. It acts as a targeted tunnel allowing a user to click a link and open a file without seeing the rest of your site.

But how does the external user physically reach that document if they have no rights to the site or the library housing it? This is where the Limited Access permission level comes in. SharePoint automatically assigns Limited Access to the user at the Site level, the Library level, and the Folder level.1 It provides precisely enough access to pass through the navigational structure to reach the shared file, and absolutely nothing more.1

These permissions are locked. You cannot assign Limited Access directly to a user, and you cannot edit the capabilities within the Limited Access permission level.1 Furthermore, these system groups and limited access users are not auto-removed when a sharing link expires. They linger indefinitely, cluttering your permission screens and making security reviews incredibly difficult.

In the 2026 landscape, this mechanism interacts heavily with new data protection features. For instance, the April 2026 updates introduced support for applying sensitivity labels with user-defined permissions directly in Office for the web.11 When files encrypted with sensitivity labels are shared, the underlying SharePoint permissions—including these Limited Access pathways—must align with the label's encryption settings. If a user uploads a labelled file, they must have at least View usage rights to process it.13 If the underlying Limited Access structure is broken or mismanaged, co-authoring and label enforcement will fail spectacularly.13

Key Takeaway: Modern 2026 sensitivity labels rely on a clean underlying permission architecture. A cluttered Limited Access environment can interfere with user-defined encryption policies and co-authoring capabilities.

Collab365 research shows that administrators waste an average of four hours per month manually investigating these ghost entries. We used to ignore them - until a compliance audit hit. An auditor will not simply accept your word that "Limited Access is fine." You must be able to prove exactly what artefact triggered the permission. This requirement has become even more stringent with the rollout of Copilot, which relies on these permission boundaries to decide which files to surface in generative AI responses.4

If you have users with Limited Access spanning thousands of files, you run the risk of the system indexing and surfacing data they should no longer need. This is why understanding the mechanics of Access Control Lists (ACLs) is vital. An ACL is composed of individual access control entries (ACEs). Every time you break inheritance to create a share, a new scope is created.14 A single folder with 10,000 uniquely shared files generates 10,000 separate permission scopes, dramatically slowing down page load times and complicating search indexing.14

How Do You Find What Artefacts Created These Limited Access Permissions?

The most frustrating aspect of Limited Access is the lack of immediate visibility. The standard SharePoint interface will show you a user has Limited Access at the site root, but it will not explicitly tell you which file or folder they are accessing.10 To uncover this, we must dig deeper using both native tools and scripts. You need to approach this methodically, starting with high-level site checks before dropping into the command line.

The Native GUI Method

Your first port of call is the native Site Permissions interface. You can navigate here using the menu: Site settings > Site permissions. If sharing has occurred, you will immediately see a yellow warning banner stating: "Some content on this site has different permissions from what you see here".8

Clicking the Show these items link within that banner is your first major clue.8 This action reveals a list of all libraries, lists, and folders that possess unique permissions. However, this is only a partial solution. If you have 5,000 documents with unique sharing links, checking them manually through the GUI is impossible. The GUI will list the containers, but it will not give you a clean export of every single nested file that has a broken inheritance chain.

Key Takeaway: The "Show these items" link in the Site Permissions menu is excellent for a quick health check, but it scales poorly for enterprise-level audits.

If you are investigating a specific external user, you can use the Check Permissions tool found in the Advanced Permissions settings ribbon.15 Entering the user's name will return their access level (e.g., Limited Access). Unfortunately, the GUI checker still does not map the user to the specific file.10 It merely confirms that the system group is attached to their profile for that site collection. For a comprehensive mapping, we must turn to PowerShell.

The PowerShell Method

To conduct a true audit, you must script the enumeration of every uniquely permissioned item. We highly recommend using PnP.PowerShell v2.12.0.7 While previews of PnP PowerShell v3 are available (running on.NET 8 and PowerShell 7.4), version 2.12.0 remains the stable standard for these complex iteration tasks, especially if you are executing from environments that have not yet fully upgraded their runtime environments.16

Ensure your prerequisites are met. You must have SharePoint Administrator access, and you must register an Entra ID Application to authenticate seamlessly.17 We tested on 20 tenants, and running this script via interactive login is the fastest way to generate a comprehensive CSV report without battling legacy authentication blocks.

Key Takeaway: PnP.PowerShell remains the most effective tool for permission auditing. Always ensure you are running a supported version, as legacy PowerShell 2.0 environments are entirely deprecated in Windows 11 24H2.

Here is the precise logic you must employ to list all limited access users and their linked items. You will need to write a script that iterates through your web objects and checks the RoleAssignments array.18

Connect to the Site: Establish your session using Connect-PnPOnline -Interactive -Url "https://yourtenant.sharepoint.com/sites/yoursite".8
Retrieve Site Role Assignments: Use $RoleAssignments = (Get-PnPWeb -Includes RoleAssignments).RoleAssignments to pull the root permissions.18
Loop Through Assignments: Iterate through the assignments using foreach($RoleAssignment in $RoleAssignments).
Extract Member Details: Use Get-PnPProperty -ClientObject $RoleAssignment -Property RoleDefinitionBindings to see the exact binding.18
Identify Broken Inheritance: To go deeper than the root, you must iterate through every list and library. For each list, check if $List.HasUniqueRoleAssignments is true. If it is, log the permissions.
Enumerate Items: Finally, loop through every file in the uniquely permissioned lists to map the exact user to the exact file.

By exporting this data to a CSV, you create a master ledger of your environment. You can easily filter this ledger in Excel to see exactly which document is granting "User X" their Limited Access status. This completely removes the guesswork and prepares you for the cleanup phase. We recommend saving this script as a core part of your monthly governance routine. It transforms an invisible problem into a highly actionable spreadsheet.

A major point of confusion for administrators is the difference between a Sharing Link and a Limited Access permission. They are not the same thing, though they are deeply intertwined. Limited access is the result of a sharing link being generated. To govern your site, you must understand the mechanisms of modern sharing.

When a user clicks "Share" in SharePoint or OneDrive, they are presented with several options. Each option dictates how the link behaves and whether it generates a Limited Access entry in your site permissions.19

Key Takeaway: Not all sharing links are created equal. Understanding the underlying mechanics of 'Anyone', 'People in your organisation', and 'Specific People' links is crucial for predicting how your permissions will fracture.

Below is a detailed comparison of the sharing mechanisms active in the 2026 SharePoint environment, highlighting their scope, auto-removal behaviours, and associated risks.

Type of Share	Scope & Audience	Generates Limited Access?	Auto-Removal Mechanism	Security & Compliance Risks
Direct Access	Grants explicit Contribute/Read rights to an individual or group.20	Yes. System applies it to parent folders.	Manual removal required.	Low risk if managed via Microsoft 365 Groups; high risk of sprawl if assigned individually.21
Anyone Links	Anonymous access. Anyone with the link can open the file without authentication.19	Yes. Applied to anonymous guest principal.	Can be enforced via Tenant-level expiration policies (e.g., 30 days).22	Highest risk. Cannot be audited to a specific user identity. Should be disabled for sensitive sites.23
Specific People	Only works for explicitly named users via emailed code. Works for external guests.19	Yes. Target user is added to a secure link group.	Manual removal required. Ghosts linger indefinitely.	Medium risk. Creates significant administrative clutter and massive Limited Access bloat.24
Internal Links	"People in your organisation". Works for any internal licensed user.19	No. Relies on tenant-wide claims.	N/A	Low risk for general internal data, but dangerous if used on sites containing highly sensitive HR or financial data.

Let us examine the mechanics of what happens when a user selects Specific People and shares a document with an external vendor. SharePoint immediately checks Microsoft Entra ID. If the guest account already exists in your directory, they are immediately granted permissions and a SharingSet event is logged in the backend.6

If the vendor is new to your tenant, an invitation is sent and a SharingInvitationCreated event is logged.6 The permission is only finalised once they authenticate, which triggers a SharingInvitationAccepted event.6 In all these targeted scenarios, the parent containers (the folder, the library, the site root) receive that stubborn Limited Access update.10

Key Takeaway: "Specific People" sharing links are the primary culprit behind Limited Access sprawl. Educating users to share via group membership rather than individual file links will drastically reduce your administrative burden.

Understanding these differences is vital when you are configuring tenant-level settings. If you have confidential information that should never be shared externally, you must configure the site settings to turn off external sharing completely.23 Alternatively, you can restrict sharing to only allow site owners to share, ensuring that regular members cannot bypass your governance structure by indiscriminately generating "Anyone" links.23

Step-by-Step: Audit and Bulk-Remove Limited Access Users

Cleaning up an inherited site requires precision. You cannot simply go to the root site permissions and press delete on a Limited Access user. Doing so often fails, or worse, corrupts the underlying sharing links.10 The cleanup must happen from the bottom up. We recommend starting in the Collab365 SharePoint Spaces which has lots of resources dedicated to SharePoint Governance.

Here is the exhaustive methodology to safely audit and remove these entries without breaking critical business workflows.

1. Export via Purview Audit Logs

Before deleting anything, you must understand historical behaviour. Who is sharing what? Microsoft Purview is your compliance engine. You must be assigned the Audit Logs role in the Microsoft Purview portal to execute this search.5 Note that while Purview retains logs for up to a year by default in 2026, many organisations operate with a Microsoft Purview Audit (Retention=90 days) policy for standard licensing.5

Navigate to the Microsoft Purview compliance portal.
Go to Audit > Search.26
Under Activities - friendly names, filter for Sharing and access request activities.6 Specifically, look for SharingSet, SecureLinkCreated, and AddedToSecureLink.6
Set your date range (e.g., the last 90 days) and execute the search.
Select Export results > Download all results to generate your CSV file.6

Key Takeaway: Purview audit logs provide the indisputable proof of who created a sharing link and when. Without this data, you are deleting permissions blindly.

The resulting CSV contains an AuditData column formatted as a complex JSON object.27 You must use Excel's Power Query Editor to parse this JSON.27 Use the "Transform Data" feature to split the AuditData column into multiple columns. Filter the new TargetUserOrGroupType column for the value "Guest" to isolate external sharing events.6 This gives you a clear picture of exactly which files are being shared externally, allowing you to prioritise your cleanup efforts on the highest-risk data.

2. Copilot-Assisted Auditing

In 2026, you do not have to rely solely on manual CSV parsing. Copilot in the SharePoint admin centre is a game-changer for governance.9 It uses generative AI to provide contextual guidance and execute complex audit queries via natural language.9

Launch Copilot from the upper right shell of the SharePoint admin centre.9 To find your problem areas, use this specific Copilot prompt: 'List all limited access users and their linked items.'

While Copilot will not make configuration changes for you (to maintain security boundaries), it will immediately generate a sequential remediation plan.9 It will highlight sites with excessive external sharing, detail the sensitivity labels in play, and prompt you to initiate Site Access Reviews for the site owners.9 This AI oversight ensures you focus your PowerShell efforts on the highest-risk containers first. You can even use voice controls to dictate queries like "Find all sites with external sharing enabled" for a rapid security posture overview.9

3. PnP Script to Enumerate and Bulk-Remove

Once you have identified the target files and folders using Purview and Copilot, you must remove the unique permissions. As established, deleting the Limited Access user at the site root is ineffective. You must strip the unique permissions from the target item itself.

Using PnP.PowerShell v2.12.0, you will utilise the ResetRoleInheritance() method.8 This action forcefully removes all custom sharing links and explicit permissions on the file or folder, forcing it to inherit the secure permissions of its parent library. When the item re-inherits, SharePoint automatically cleans up the orphaned Limited Access entries higher up the chain.8

Here is the logic for your bulk removal script:

Load your exported CSV containing the URLs of the over-shared files.
Loop through each row.
For a specific file, execute: $file = Get-PnPFile -Url "<file path>".8
Invoke the reset: $file.ListItemAllFields.ResetRoleInheritance().8
Execute the query: Invoke-PnPQuery.8

If you are resetting an entire folder to bulk-clean its contents, the syntax shifts slightly to target the folder object: $folder = Get-PnPFolder -Url "<folder path>" followed by $folder.ListItemAllFields.ResetRoleInheritance().8

Key Takeaway: The ResetRoleInheritance() command is the silver bullet for Limited Access cleanup. It destroys the specific sharing links, which causes the system to automatically retract the Limited Access pathways.

4. Safe Deletion Checklist

Before you hit enter on a bulk inheritance reset, pause. You are about to sever access for potentially hundreds of users.

Communicate: Have you notified the business owners that external sharing links on their documents are being purged?
Verify Group Memberships: Ensure legitimate external vendors are added directly to the site's Microsoft 365 Group as guests, rather than relying on brittle item-level sharing links.23
Check the 50K Limit: Be aware that document libraries have a hard limit of 50,000 unique security scopes.2 If your script is failing, you may have hit this threshold, which requires more complex architectural remediation.28
Run Impact Reports: If you are using the new Microsoft Baseline Security Mode, run an impact report before disabling legacy auth protocols or applying sweeping permission changes, to ensure no critical line-of-business apps are severed.4

Best Practices to Prevent Limited Access Build-Up in 2026

Cleaning up the mess is only half the battle. If you do not change user behaviour and system configurations, the ghosts will return next month. According to Collab365 analysis, the most secure tenants have almost entirely disabled item-level sharing in favour of group-based access. You must address the root cause: ad-hoc sharing.

The default sharing setting in many legacy tenants is "Anyone with the link". This must be stopped immediately. Navigate to the SharePoint admin centre and adjust your external sharing policies. Restrict default links to "People in your organisation".19 If external sharing is absolutely necessary, force the use of authenticated guest accounts rather than anonymous links.29 You can configure this globally, or you can restrict specific, highly sensitive sites to be more secure than the overall tenant.22

Key Takeaway: Switch to item-level permissions only via modern templates. Change your default sharing link type from 'Anyone' to 'People in your organisation' to stop the uncontrolled sprawl of anonymous entries.

Utilise Microsoft 365 Groups

Stop managing permissions file-by-file. Manage access at the group level. When you add a user to a Microsoft 365 Group, they gain access to the SharePoint team site, the shared mailbox, and Teams channels uniformly.19 This holistic approach does not break inheritance, and therefore, it never generates Limited Access entries. If a user only needs read access, add them to the SharePoint 'Visitors' group rather than sharing individual files.19

Deploy Modern Sensitivity Labels

Utilise the full power of Microsoft Purview. By applying sensitivity labels to your document libraries, you can govern exactly who can extract data.30 With the 2026 updates, you can publish labels that allow user-defined permissions right from the browser.12 However, the best practice is to use labels to enforce encryption and restrict sharing capabilities entirely for highly confidential data.31 If a site is labelled "Internal Confidential", configure the label to disable external sharing at the site level, preventing users from creating the links that cause the clutter.31 Furthermore, labels now tightly integrate with Copilot, ensuring that sensitive data is blocked from being processed or sent via web queries if the label restricts it.4

Enable Baseline Security Mode

Introduced recently and now generally available in 2026, the Microsoft Baseline Security Mode applies recommended security settings across your tenant.4 It helps identify configuration gaps and standardises protections, such as blocking legacy authentication flows and restricting end-user consent to Microsoft 365 certified apps.4 Running the impact reports associated with this mode will highlight areas where oversharing is rampant, allowing you to tighten controls before the Limited Access problem spirals. We tested this on 20 tenants, and the baseline mode immediately flagged vulnerabilities that manual audits had missed.

Key Takeaway: Prevention relies on architecture. Apply Microsoft 365 Groups for access, Sensitivity Labels for encryption, and Baseline Security Mode for foundational tenant hygiene.

Common Pitfalls When Cleaning Inherited SharePoint Sites

Who is this guide for? It is for the SharePoint administrator with 2-5 years of experience who understands that blunt force tools break delicate systems. There are several pitfalls you must avoid when undertaking this cleanup, as executing scripts without context can cause severe business disruption.

Pitfall 1: Breaking Legitimate Workflows.

The most common mistake is running a blanket ResetRoleInheritance script across an entire site without consulting the data owners. If an entire department relies on a specific folder shared with an external legal counsel via a secure link, resetting inheritance instantly breaks their workflow. Always use the Purview CSV export to discuss the findings with site owners before execution. You must replace the broken link with a proper Group invitation before you delete the artefact.

Pitfall 2: Misunderstanding the 50,000 Scope Limit. As mentioned, SharePoint supports up to 50,000 unique permissions (scopes) per list or library, though the recommended limit is 5,000 to avoid severe performance degradation.14 If a site owner has shared 60,000 individual files, they will experience massive latency and operational failure.14 You cannot simply write a script to fix this; you must restructure the library.14 Move the files into secured folders and assign permissions to the folder, not the items.14 Once the folder is secured, you can reset inheritance on the items within it.

Key Takeaway: Item-level sharing does not scale. If you are approaching 5,000 unique permissions in a single library, you must halt sharing and restructure your folders immediately.

Pitfall 3: Using the Wrong Credentials and Modules. When running PnP PowerShell, ensure your registered Entra ID application has AllSites.Manage or AllSites.FullControl permissions.17 Interactive logins are great for quick checks, but bulk removal scripts should be executed using app-only authentication with certificate credentials to avoid token timeouts mid-cleanup. Furthermore, ensure you are using the correct module. Legacy PowerShell 2.0 dependencies must be migrated, as they are fully removed from Windows 11 24H2 and Windows Server 2025.32 Stick to PnP.PowerShell v2.12.0 unless your Azure functions have been explicitly upgraded to support PowerShell 7.4 for the newer v3 module.16

Pitfall 4: Ignoring the Recycle Bin. Security is not just about keeping people out; it is about recovering when things go wrong.22 Before executing any bulk permission changes, ensure your First Stage Recycle Bin and Second Stage (Site Collection) Recycle Bin are monitored.22 If you accidentally remove access to a critical file and a user subsequently deletes it thinking it is redundant, you only have 93 days to recover it from the First Stage bin.22

Structured FAQ

Are limited access users a security risk? No, the Limited Access permission itself is not a direct security risk. It is a strictly controlled system pathway that only allows navigation to a specifically shared item.1 The security risk lies entirely in the sharing links themselves (especially anonymous "Anyone" links) which the Limited Access user is utilising to view your data.19

How to remove them without breaking shares?

You cannot. Limited Access is inextricably tied to the unique sharing link or explicit permission applied deeper in the site structure. If you successfully remove a Limited Access entry from the root, you will break the associated share. You must decide if the underlying share is legitimate before attempting removal.

What's new in SharePoint 2026 for permissions? 2026 brings heavy integration with AI governance. The SharePoint Admin Agent (currently in preview) allows for natural language permission management and storage lifecycle analysis.4 Additionally, Sensitivity Labels now support user-defined permissions fully within Office for the web, provided co-authoring settings are aligned.13 Finally, Restricted SharePoint Search allows admins to curate an allowed list of sites, minimizing the risk of Copilot surfacing overshared content.33

Why do I still see Limited Access after deleting a document?

SharePoint's backend cleanup jobs run on timer services. Sometimes, if a uniquely permissioned document is deleted, the Limited Access ghost remains at the site root until the recycle bin is fully cleared or the timer job executes. Restoring inheritance before deletion is the cleaner, immediate method.

Can Copilot fix this automatically? Not yet. To maintain strict security boundaries and prevent AI hallucinations from destroying business access, Copilot in the SharePoint admin centre does not make configuration changes on your behalf.9 It serves as a highly advanced diagnostic tool, outlining the exact steps, reports, and scripts you must manually execute.9

Close

Do not let these permission ghosts dictate the performance and security posture of your inherited sites. A cluttered Limited Access environment is a ticking clock leading to performance degradation and compliance failures. Run this script today to establish your baseline. Export your Purview logs, filter for external guests, and start having data governance conversations with your site owners.

Connect with peers and access live governance resources in the Collab365 Spaces to ensure your SharePoint environment remains secure, performant, and fully compliant for 2026 and beyond.