Update: please see our updated blog post on this subject.
Today we are announcing that we will begin blocking the assignment of the ApplicationImpersonation role in Exchange Online to accounts star...
Updated Nov 22, 2024
Version 12.0
Blog Post
I have an EWS registered application which performs impersonation via "full_access_as_app" api permission. It is (WAS) capable of copying email from one mailbox to another within a tenant. Somewhere around late March 2024 the ability to UploadItems (EWS SOAP) stopped working with a response of "Access is denied. Check credentials and try again., The process failed to get the correct properties". All the other functions - Find Items, Save (both EWS Managed API) and ExportItems (EWS SOAP) are working correctly. I'm not getting any code errors. Has something else been deprecated to change my ability to "copy" emails to a folder using UploadItems?
Really frustrating - I changed nothing and the code stopped working for the 4 tenants I was using it with.
I'd do the whole thing in Graph if the ability to copy from one user to another were in the API - but that hasn't happened yet. 🙂
Thanks!