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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(278.4, 35%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVA%3C/text%3E%3C/svg%3E)
Hi team,
I want to deploy custom ppt template to all company user , please suggest best approach with solution
I will highly appreciated you help ASAP.
Thanks in advance
A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Hi @Michelle Nguyen ,
Thanks for the response.i am getting the error When ever adding the asset libriary
Attached the screenshot ,please guide how to resolve it
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 6%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMN%3C/text%3E%3C/svg%3E)
Thank you for providing the screenshot.
Based on the error message, it appears that SharePoint is blocking the library from being registered as an Organization Assets Library because the required permission has not been granted.
The error specifically states: "Everyone except external users" needs to be given read permission to the document library. This means that before running Add-SPOOrgAssetsLibrary, the document library must grant at least Read access to the Everyone except external users group.
Could you please check the following?
Please keep me updated.
Based on the information you provided, I understand that you want to publish a custom PowerPoint template centrally so that all users in your Microsoft 365 organization can access the same approved company template.
The recommended approach is to create a SharePoint Organization Assets Library and register it as an Office Template Library. This provides a centrally managed template gallery in PowerPoint, rather than requiring you to copy the template manually to every user’s device. Microsoft supports organizational templates in PowerPoint for Windows, Mac, and the web.
Please ref: Create an organization assets library
-Deployment steps
.potx file to it.Connect-SPOService -Url https://<tenant>-admin.sharepoint.com
Add-SPOOrgAssetsLibrary `
-LibraryUrl "https://<tenant>.sharepoint.com/sites/<site>/<library>" `
-OrgAssetType OfficeTemplateLibrary
The Add-SPOOrgAssetsLibrary cmdlet designates the SharePoint library as a central organization assets location, and OfficeTemplateLibrary is the asset type used for Office templates.
-Where users can find the template
After the library becomes available:
-Requirements and important notes
.potx format.I recommend testing the deployment with a small group first and verifying that the template appears under the organization’s template section before announcing it company-wide.
I hope this helps. Please let us know if you encounter an error when running Add-SPOOrgAssetsLibrary or if the template does not appear after the library has been registered.
Thanks a lot . But when open the Template in broswer it is working ,when open in application same template it is showing as "File Extension as chnaged" why? It worked depolyment me.Additional i need depoly the custom template through intune for all my macbook or windows.
can you guide me how to do it.
Thanks in advance
On the "file extension has changed" warning: it almost always means the .potx file uploaded to the library isn't actually a genuine PowerPoint Template internally, even though it's named .potx. The most frequent cause is that the file's extension was changed by renaming (in File Explorer, during export, or via a script) rather than by using PowerPoint's own Save As > PowerPoint Template (*.potx) option. Office checks the file's actual internal format against its extension when opening locally, and flags the mismatch, which is exactly why it opens fine in the browser (PowerPoint for the web renders through Office Online Server, which doesn't perform that same local signature check) but throws a warning in the desktop app.
The fix: open your original file in PowerPoint desktop, go to File > Save As > Browse, and explicitly choose "PowerPoint Template (*.potx)" from the file type dropdown, don't just rename an existing file's extension. Replace the file in the SharePoint library with this properly-saved version. Since the library is already registered as an org asset, this is just a content swap, not a re-registration, so it should propagate much faster than the initial 24-hour window.
On deploying via Intune (Windows + macOS): this is a separate, file-copy-based method rather than the cloud-hosted Org Assets approach, and the two aren't mutually exclusive, you can run both if you want a local fallback in addition to the SharePoint tab.
-Windows: package the .potx as a Win32 app in IntuneIntune > Apps > Windows > Create > Windows app (Win32). Package a small install script (.intunewin, built with the Win32 Content Prep Tool) that copies the .potx into %APPDATA%\Microsoft\Templates\ for the signed-in user. This makes it show up under the "Personal" tab in File > New.
-macOS: deploy via shell script or a signed .pkgIntune > Apps > macOS > Create > Shell script, or package as a Custom App (.pkg) if you prefer a signed installer. Since Intune scripts on Mac run as root, the script needs to explicitly resolve the currently logged-in user and copy the file into that user's own Library path, not a root-level path.
Please keep in mind: updates require redeployment, unlike the SharePoint method. Since this is now a file sitting locally on each device rather than a live SharePoint-backed template, updating it later means redeploying through Intune again, there's no single central edit like there is with the Org Assets Library. Worth deciding up front whether this local copy is meant to be a permanent parallel channel, or just a stopgap while the SharePoint library propagates and gets adopted.
AI answer
Best approaches depend on where the template must appear in PowerPoint:
C:\Users\<UserName>\Documents\Custom Office Templates.potx file is in that folder, users can go to File > New and open it from Personal or Custom..pptx:
.potx template.potx by editing the Slide Master and layouts:
Recommended approach
.potx file into each user’s Custom Office Templates folder so it appears under Personal/Custom in File > New.