backup exchange onprem public folder failed

Hello @Pavel Banar 

Have you ran the following command to ensure?

Get-PublicFolder -identity "\" -Recurse | Add-PublicFolderClientPermission -user serviceaccount@domain.com -AccessRights Owner

https://docs.metallic.io/metallic/adding_all_public_folders_to_backup_content_for_exchange_online.html
 

If you have confirmed account has top level permissions and is added correctly best to open a case and have support review further. 

Thanks for confirming

Best to open a case for review. Might be something unique to config or perhaps it a false error. Support would need to dig into logs to confirm actual issue if permissions are already set.

Scott

scott i found out in log

6496  1680  03/21 16:08:24 333 Could not find a service account for public folder operations
6496  1680  03/21 16:08:24 333 Failed to discover public folders
6496  1680  03/21 16:08:24 333 No public folders found during auto discovery process
6496  1680  03/21 16:08:24 333 Full Restart String = [ -o 3|190  -o 4|458  -o 2|458]
6496  1680  03/21 16:08:24 333 No mailboxes found to process
6496  1680  03/21 16:08:24 333 main(105) - CalculateTargets returned with nothing to do
6496  1680  03/21 16:08:24 333 Finalizing Archive results...
6496  1     03/21 16:08:24 333 ### initServiceAccountsToProcessPublicFolders - Exception: [No EWS connector available for the given Exchange server version]
6496  1     03/21 16:08:24 333 ### PublicFolder::GetFirstLevelPublicFolders - Invalid license for public folders
6496  1680  03/21 16:08:25 333 Performance: Total time spent moving 6 text files in job results folder = 0.000219
6496  1680  03/21 16:08:25 333 Performance: Total time spent moving or deleting 3 offset table files in job results folder = 0.080981
6496  1680  03/21 16:08:25 333 Performance: Total time spent updating 3 mailboxes in ExMBJobInfo.dat = 0.015754
6496  1680  03/21 16:08:25 333 Performance: Total time spent updating 1 mailboxes in CSDB = 0.250858
6496  1680  03/21 16:08:25 333 END updating successful MBs.
6496  1680  03/21 16:08:25 333 BKP CALLED COMPLETE (PHASE Status::SUCCESS), 333. Token [333:15:1:0:0:7257]
6496  1680  03/21 16:08:27 333 CvNetworkPool::~CvNetworkPool() - Controller thread successfully stopped.