Copilot Not Working

Fix Invalid HTTPS SharePoint URL in Copilot Studio

Maira Mehtab Sep 22, 2026 869 views

Question details

A SharePoint URL is rejected as an invalid knowledge source when trying to create a chatbot in Copilot Studio.

Product: Copilot Studio (Power Virtual Agents)
Device & OS: not provided
Scenario: Adding a SharePoint site as a knowledge source for a Power Virtual Agents or Copilot Studio chatbot.
Observed behavior: The system rejects the SharePoint address because it requires the URL to use the secure HTTPS protocol.

Before you start

Verify your organization's exact SharePoint URL structure and ensure you have the necessary access permissions to the SharePoint site you intend to use.

Solution 1Recommended

Verify and Update to an HTTPS URL

Use this solution to ensure your SharePoint address explicitly uses the secure HTTPS protocol required by Copilot Studio.

Copilot Studio requires strict security protocols when fetching data from internal or external sources. Unencrypted HTTP addresses are blocked by default to protect sensitive organizational data.

Copy the SharePoint URL

Navigate to the SharePoint site you want to use as a knowledge source and copy the full URL from your browser's address bar.

Inspect the URL prefix

Paste the copied address into a plain text editor. Check the very beginning of the address to see if it starts with 'http://' or 'https://'.

Modify to HTTPS

If the address starts with 'http://', manually change the prefix to 'https://' to ensure it meets the security requirements.

Enter the URL in Copilot Studio

Return to the Copilot Studio knowledge source configuration menu, paste the newly formatted HTTPS URL, and click Save to apply the changes.

Connection Secured: Once the HTTPS URL is accepted, Copilot Studio will begin safely indexing the SharePoint content for your chatbot.

Solution 2

Consult the Power Platform Community

If your URL already uses HTTPS but is still being rejected, seek specialized guidance from Microsoft's developer communities.

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Frequently Asked Questions

Why does Copilot Studio require an HTTPS SharePoint URL?

HTTPS encrypts the data transmitted between Copilot Studio and your SharePoint environment. This strict requirement ensures that sensitive organizational knowledge and user queries remain protected from interception.

What is the difference between Power Virtual Agents and Copilot Studio?

Microsoft has rebranded and integrated Power Virtual Agents into Copilot Studio. All the previous chatbot-building functionalities remain intact but are now managed within the expanded Copilot Studio ecosystem.

Can I use external websites as knowledge sources instead of SharePoint?

Yes. Copilot Studio allows you to link public websites as knowledge sources, provided that the websites are securely hosted (using HTTPS) and do not require user authentication or login credentials to access the data.

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