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Fix Communication Site Template Unavailable in SharePoint Subsite

Ayan Masood Oct 7, 2026 869 views

Question details

The user is attempting to select a Communication Site template for a new subsite but finds it unavailable, while using custom templates results in duplication errors.

Communication Site Template Unavailable When Creating a SharePoint Subsite

Product: Microsoft SharePoint
Device & OS: not provided
Scenario: Creating a new subsite within an existing SharePoint site architecture.
Observed behavior: The Communication Site template is completely missing from the standard subsite creation menu, and custom templates fail with duplicate category errors.

Before you start

Verify that you have site owner or SharePoint administrator permissions to create new site collections or modify site architecture settings.

Solution 1Recommended

Acknowledge Design Limitation and Submit Feedback

Understand that the Communication Site template is not supported for subsites by design, and submit a feature request to Microsoft.

By design, Microsoft SharePoint does not include the Communication Site template in the subsite creation menu. Communication sites are structurally intended to be standalone, top-level site collections rather than nested subsites.

Access the feedback portal

Navigate to the official Microsoft Feedback portal for SharePoint in your web browser.

Log in to your account

Submit a feature request

Search for existing requests regarding the 'Communication Site subsite template' to upvote them, or click 'Send feedback' to submit a new suggestion.

Acknowledge Design Limitation and Submit Feedback

Future Updates: Microsoft actively monitors the feedback portal to prioritize new features in future SharePoint updates.

Solution 2

Create a Top-Level Communication Site Instead

Since subsites lack this template, you can create a standalone Communication site and link it to your main site hub.

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Frequently Asked Questions

Why can't I use a Communication Site as a subsite in SharePoint?

Microsoft designed Communication sites to act as top-level site collections to support modern, flat SharePoint architectures (like Hub sites), rather than being deeply nested within a subsite structure.

How do I fix duplicated category errors when applying custom site templates?

This error typically occurs if a custom template relies on site features or categories already active in the parent site. Try deactivating conflicting site features before applying the custom template, or re-save the template without including the duplicated lists.

Can I convert an existing Team site into a Communication site?

No, SharePoint does not currently support direct conversions from a Team site to a Communication site. You must create a new Communication site and manually migrate your files and content over.

Is subsite creation being deprecated in SharePoint?

While subsite creation hasn't been completely deprecated, Microsoft strongly recommends transitioning to a flat site architecture using Hub sites, as new modern features are primarily focused on standalone site collections.

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