Microsoft Dynamics 365 | Integration, Dataverse...

Server-Based SharePoint Integration issue

(2) Share

Report

Posted on by JH-15051849-0

We have an on-premises Microsoft Dynamics environment integrated with SharePoint Online.

We are currently attempting to configure Server-Based SharePoint Integration, but we are encountering the following error during the validation/configuration process:

<sites>

<site>

<url>https://tenantname.sharepoint.com/sites/xxxx</url>

<exception>Failed to connect to SharePointSite.</exception>

</site>

</sites>

</errorlog>

The account used for the configuration has the following permissions:

Global Administrator in Microsoft 365
Domain Administrator in the on-premises environment
SharePoint Site Collection Administrator
SharePoint Site Owner permissions

The account can access the SharePoint site successfully through a web browser without any issues.

The problem occurs regardless of which SharePoint Online site URL we specify for the integration.

Are there any known prerequisites or configuration requirements that could cause this issue?

Any guidance would be greatly appreciated.

Categories:

Dynamics 365 general

I have the same question (0)

All responses (3)

Answers (0)

Sort by

Suggested answer

11manish 1,232 Super User 2026 Season 2 on at

Like (0)

Report
Copy link

Link copied!
The error:

Failed to connect to SharePointSite
Error Code: -2147088205

generally indicates that Dynamics 365 Server-Based SharePoint Integration could not authenticate or establish a trusted connection with SharePoint Online, even though the SharePoint site itself is reachable.

My recommended troubleshooting order

Verify your Dynamics 365 on-premises version and latest cumulative update.

Confirm TLS 1.2 is fully enabled on the Dynamics servers.

Review the Azure AD application registration used for SharePoint integration.

Check Conditional Access and MFA policies that could affect server-to-cloud authentication.

Enable Dynamics platform tracing to capture the detailed authentication exception.

Verify outbound connectivity from the Dynamics server (not just an administrator's workstation) to SharePoint Online.

Was this reply helpful? Yes No
JH-15051849-0 4 on at

Like (0)

Report
Copy link

Link copied!
Hi @11manish

Answers is in red.

I understand the reasoning behind creating an App Registration. However, in the setup wizard, it doesn't seem possible to add the App Registration details.

When setting up the integration, you simply sign in as an administrator in Dynamics 365. After that, you complete a setup wizard where there doesn't appear to be any place to enter the App Registration values.

The only information you need to provide is the SharePoint tenant ID and the SharePoint URL.

Am I missing something?

Verify your Dynamics 365 on-premises version and latest cumulative update. (Just to confirm, is my understanding correct that this is something the Dynamics 365 on-premises administrator would be able to verify?)

Confirm TLS 1.2 is fully enabled on the Dynamics servers (Just to confirm, is my understanding correct that this is something the Dynamics 365 on-premises administrator would be able to verify?)

Review the Azure AD application registration used for SharePoint integration (check my first respons)

Check Conditional Access and MFA policies that could affect server-to-cloud authentication (I dont think We can check this, because no app reg has been created, agian, check my first respons)

Enable Dynamics platform tracing to capture the detailed authentication exception (Just to confirm, is my understanding correct that this is something the Dynamics 365 on-premises administrator would be able to verify?)

Verify outbound connectivity from the Dynamics server (not just an administrator's workstation) to SharePoint Online. (Just to confirm, is my understanding correct that this is something the Dynamics 365 on-premises administrator would be able to verify?)

Was this reply helpful? Yes No
Suggested answer

JH-15051849-0 4 on at

Like (0)

Report
Copy link

Link copied!

we've followed this guide:

https://learn.microsoft.com/en-us/dynamics365/customerengagement/on-premises/admin/on-prem-server-configure-azure-app-with-sharepoint-access?view=op-9-1

Was this reply helpful? Yes No