Encountered this error while setting up the Microsoft Dynamics 365/CRM SharePoint Document Management – when trying to Enable Server-Based SharePoint Integration: Validation Status: Failed. Default Site Invalid. Dynamics 365 Configure Server Based SharePoint Integration Error – The remote server returned an error: 403 Forbidden.
<errorlog><sites> <site> <url>https://demo210111.sharepoint.com/sites/CRMTS01</url> <exception>The remote server returned an error: (403) Forbidden.</exception> </site> </sites></errorlog>
This is due to the CRM User setting up the SharePoint integration needing the proper SharePoint Site permission in-addition to CRM security roles. Need to add the CRM User to the SharePoint Site with Edit Permission to resolve this error.
Re-ran and it is OK and no more error. Yay!
Link to Permissions required for document management tasks
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