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Hi @Glenn Maxwell,
Welcome to the Microsoft Q&A forum.
Thank you for taking the time to share your setup in such detail, it’s very helpful.
To answer your main question: there are a few reliable ways to validate that the templates you uploaded are being detected and surfaced correctly on the client side.
Based on what you’ve described, your approach aligns well with Microsoft’s recommended configuration for the Organization Assets Library, including the use of separate libraries and the correct template file formats (.xltx, .dotx, .potx).
To address your main question, there are a few reliable ways to validate that the templates you uploaded are being correctly detected and made available to users. In general, validation can be done at two levels: confirming the SharePoint registration and confirming visibility in supported client applications.
1/ Confirm registration (server-side):
Start by running the Get-SPOOrgAssetsLibrary cmdlet to verify that each library is properly registered. The output should show OrgAssetType = OfficeTemplateLibrary, and the library URLs should be correct. At the same time, confirm that the uploaded template formats are supported (.xltx, .dotx, .potx).
2/ Confirm client visibility (supported clients):
Next, validate that the templates appear as expected in supported Office clients:
- In Word, Excel, or PowerPoint desktop apps, create a new file and look for the organization or company templates section. This requires Microsoft 365 Apps version 2002 or later.
- In PowerPoint on the web, templates will not appear directly under the New menu. Instead, users must go to the PowerPoint start page and select Office Template Library. Please note that users must be E3 or E5 licensed to see this view.
It’s also important to note that the Organization Assets Library does not surface templates in Word on the web or Excel on the web, so those clients are not suitable validation points.
Finally, allow up to 24 hours for templates to appear in desktop applications. Please also ensure that users have at least Read access to the root site and that no policies (such as the OnlineStorage registry key) are blocking access.
If you’re looking for a quick confidence check, running Get-SPOOrgAssetsLibrary is often the fastest signal. If the output is correct, any remaining issues are usually related to client prerequisites, such as app version, permissions, or policy settings, rather than how the templates were uploaded.
You may also want to consider posting your question in the Find Answers | Microsoft Power Platform Community.
This forum is dedicated to Power Platform topics and is supported by a knowledgeable community, including Microsoft experts and partners. By posting there, you may gain access to more specialized insights that could help identify a potential workaround more effectively.
I’m suggesting this because our Power Platform resources here are limited, and we want to avoid providing incomplete guidance. The Power Platform Community is better positioned to offer targeted assistance and also allows others to learn from your experience.
I hope these suggestions help clarify the validation process and support your workflow moving forward.
Wishing you a great day.
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