Hi @Sree
1.How do I export and import distribution list from one tenant to a another tenent
A similar thread provided detailed steps here: How do I export Office365 distribution groups and import it to another office365 Tenant
Get-DistributionGroup -RecipientTypeDetails MailUniversalDistributionGroup | Export-Csv -Path “C:\Users\Administrator\Desktop\Example01.csv"
Import-Csv -Path "C:\Users\Administrator\Desktop\Example01.csv" | ForEach-Object {New-DistributionGroup -Name $_.Name -DisplayName $_.DisplayName -Alias $_.Alias}
2.How do I export online archive mailbox and shared mailbox
How to export Exchange Online archive mailbox? and detailed steps to Export Office 365 Shared Mailbox to PST For Backup Purpose
Using Office 365 Compliance center and export to PST or export items manually from Outlook
3.While exporting the the mailboxes into pst, Will it also have users calender and contacts.
Yes it will, you could still use the methods above in compliance center or in outlook to export your mailboxes to PST include calendar and contacts.
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