Permission & Access Issues

How to Fix the Disabled SharePoint Email Invitation Option

Aamir Naveed Akram Oct 12, 2026 869 views

Question details

Users are unable to uncheck the 'Send an email invitation' checkbox when trying to share access with guest users.

Why Is the SharePoint Email Invitation Option Disabled?

Product: Microsoft SharePoint
Device & OS: not provided
Scenario: Inviting external or guest users to access a SharePoint site or specific documents.
Observed behavior: The option to clear or uncheck the 'Send an email invitation' box is locked or disabled for some users, preventing them from sending invites without emails, even though administrators have the ability to change it.

Before you start

Confirm whether the invited external user is accessing your SharePoint site or tenant for the very first time, as new guest accounts enforce email verification by design.

Solution 1Recommended

Verify Guest Status and Open a Support Ticket

Determine if the restriction is due to Microsoft's default security behavior for new guests, and contact support if the issue persists for established users.

When an external user is invited to a SharePoint site for the first time, the invitation email is strictly required. This ensures the user can securely verify their identity and accept the permission terms.

After the user has successfully accessed the site at least once, subsequent invitations for other sites or documents within the same tenant should allow you to omit the email.

Check guest history

Verify with the user if they have previously accessed any document or site within your current SharePoint tenant.

Log into the admin center

If the user already has access and the checkbox is still disabled, ask an administrator to log into the Microsoft 365 admin center.

Submit a support ticket

Open a new support request detailing the issue. Be sure to include your specific tenant details and attach the browser HAR logs so the backend configuration can be reviewed.

Verify Guest Status and Open a Support Ticket

HAR Logs: HAR (HTTP Archive) logs help Microsoft support engineers identify where the communication between your browser and the SharePoint server is failing.

Solution 2

Use the Semicolon Workaround

A temporary UI workaround that frequently allows users to bypass the locked checkbox.

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Frequently Asked Questions

Why is the email invitation strictly required for first-time SharePoint guests?

Microsoft requires an email invitation for first-time external users so they can securely verify their identity and formally accept the access permissions for your organization's tenant.

Will the semicolon workaround permanently fix the disabled checkbox?

No, adding a semicolon is just a temporary UI workaround. If the issue affects users who already have tenant access, you must contact Microsoft 365 Support to resolve the underlying configuration error.

What are HAR logs and why does Microsoft Support ask for them?

HAR (HTTP Archive) logs record the network requests between your web browser and the SharePoint site. Support engineers use these logs to diagnose backend communication failures that cause the sharing options to lock up.

Document & File Issues