Hi @Roger Roger
This script should be modified to:
$DLList = import-CSV C:\temp\list.csv
ForEach ($item in $DLList){Set-DistributionGroup -Identity $item.dlalias -ManagedBy @{Add="user2@mydomain.com"} -Confirm:$False -BypassSecurityGroupManagerCheck }
ForEach ($item in $DLList){Set-DistributionGroup -Identity $item.dlalias -ManagedBy @{Remove="user1@mydomain.com"} -Confirm:$False -BypassSecurityGroupManagerCheck }
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