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January 12, 2024

Office 365 Backup, Veeam

Veeam for Microsoft 365 What’s unsupported after the deprecation of basic authentication?

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After Microsoft’s decision to deprecate basic authentication in favor of modern authentication, there are a few things that will change when switching from basic to modern. Below are items that are not supported through modern app-only authentication, and support that has been added in newer releases: Further information on what is/is not supported when switching to modern authentication can be found here KB3146. If you would like assistance, or have any further questions on what is supported, please email Support@Managecast.com.

Office 365 Backup, Veeam

Veeam Backup for Microsoft 365 “objects types are unsupported in the modern app-only authentication mode”

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After Microsoft’s deprecation of basic authentication, item’s that were excluded that aren’t supported in modern app-only authentication mode will raise a warning. The warning will specify, “Found # excluded objects. Some of the objects specified for exclusion will be ignored during processing because such objects types are unsupported in the modern app-only authentication mode.” If you are unsure what is no logner supported, you can check HERE. To resolve this warning: If you continue to experience issues with your M365 job, or any Veeam issue, please reach out to Support@Managecast.com.

Office 365 Backup, Veeam

Veeam for Microsoft 365 “Download request retry timeout exceeded” error

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Recently we have begun seeing the “Failed to backup item: FILEPATH, Download request retry timeout exceeded” error appear in jobs backing up OneDrive. Recent changes on the Microsoft side have begun preventing OneNote notebooks from being able to be downloaded. This prevents Veeam from being able to request and download the file to backup. We have an active case open with Veeam while they work with Microsoft to resolve this issue. We will update this post once Veeam and Microsoft have provided a public workaround or hotfix. Information on the issue can also be found here in KB4529. For additional assistance, please reach out to Support@Managecast.com.

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