Hello Glen,
This error message usually means that you do not have the required permissions to access the files in that SharePoint library. To resolve this issue, you will need to contact either your Microsoft team owner or SharePoint administrator to grant you access to the files.
But manually granting document access permissions in SharePoint can be time-consuming and prone to human error. One possible solution to this issue could be to use a third-party app which sync’s security privileges from Dynamics CRM to SharePoint.
SharePoint Security Sync by Inogic is a Microsoft AppSource preferred app for synching Microsoft Dynamics 365 CRM security privileges to SharePoint. It auto-syncs document access permission from Dynamics 365 CRM to SharePoint. This proves helpful in ensuring that users have the appropriate permissions to access the files they need in SharePoint.
SharePoint Security Sync also allows users to move/copy email, notes, and sales literature attachments in bulk to the cloud. It provides users with various other document and storage management features to save Dynamics 365 CRM storage space and costs. You can also resolve SharePoint Document Library Limit by creating custom SharePoint library structures within Microsoft Dynamics 365 CRM with this!
Download SharePoint Security Sync for a 15-day free trial from our website or Microsoft AppSource.
Thanks!