Error connecting With XRM Microsoft

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Posted on by CU25031721-0

I am facing error while creating new connection with Microsoft id in XRM tool box.

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Microsoft Dynamics CRM

Dynamics 365 Sales

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Verified answer

Saif Ali Sabri 2,351 Super User 2025 Season 2 on at

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Error connecting With XRM Microsoft

The error message "Can't connect to Microsoft Dataverse - O365" in XrmToolBox indicates that the tool is unable to establish a connection with your Microsoft Dataverse environment. Follow these steps to troubleshoot and resolve the issue:
1. Verify Credentials & Permissions

Ensure you are using a valid Microsoft ID with the correct permissions.

You must have System Administrator or System Customizer roles in Dataverse.

Try logging into Power Platform Admin Center (https://admin.powerplatform.microsoft.com/) with the same credentials to verify access.

2. Check Organization Availability

In XrmToolBox, enable "Display list of available organizations" to ensure the correct environment is selected.

If no organizations appear, your account may not have the necessary access.

3. Update XrmToolBox & Plugins

Ensure you are using the latest version of XrmToolBox (Download here).

Update all installed plugins via the Tool Library inside XrmToolBox.

4. Enable Multi-Factor Authentication (MFA) Support

If your account has MFA enabled, you may need to use OAuth authentication.

Instead of "Sign in as current user," try manually entering credentials and selecting OAuth authentication.

5. Check Network & Firewall

Ensure your network allows access to https://login.microsoftonline.com and https://yourorg.crm.dynamics.com.

If you're behind a corporate firewall or VPN, try connecting from a different network.

6. Use Application ID for Connection (Alternate Method)
If login issues persist, try connecting using an Azure App Registration:

Register an app in Azure Active Directory.

Assign API permissions to Dataverse.

Use Client ID and Secret to connect in XrmToolBox.

After performing these steps, try reconnecting. Let me know if you need further assistance! 🚀

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Tom_Gioielli 2,291 Super User 2025 Season 2 on at

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Error connecting With XRM Microsoft

I like using the MFA connector (I believe it is the bottom left corner option these days) when using XRM Toolbox. It allows you to define the exact URL you are connecting to, and it does not rely on the extra step of finding available organizations for you. It tends to have less issues and errors, so give that option a try.

If this answer helped, please consider marking as verified.

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