What is OneDrive pre-migration planning?

It is the stage that converts discovery findings into an executable migration design, defining scope, target readiness, mapping, authentication, waves, incremental strategy and validation before production data moves.

How is pre-migration planning different from the assessment?

The assessment discovers the environment, while pre-migration planning turns those findings into the design: scope, mapping, authentication, waves and validation.

How do I prepare the destination accounts?

Make sure the required target users exist and their OneDrive sites are available, and resolve renamed accounts, changed domains and ownership differences before migration starts.

How do I prepare Microsoft Entra application registration?

Create separate source and target OneDrive migration apps, use the documented Microsoft Graph permissions, grant admin consent and keep the source and target credentials separate.

What administrative access is required?

The administrator must have access to the OneDrive sites involved in the migration, so confirm the required source and target access before scheduling the pilot.

How do I design migration waves?

Group users into manageable batches by business unit, priority, data volume or schedule, and reserve time between waves for log review, validation and exception remediation.

How do I plan for source changes?

If users remain active during the migration period, include a later incremental pass and keep the same migration computer for previously migrated sites so the local incremental metadata remains available.

Why prepare the pilot run in advance?

Executing a tested pilot means the production process is based on a verified configuration rather than assumptions, which reduces risk in the main waves.

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EdbMails

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EdbMails lets you recover corrupted, damaged, and offline Exchange EDB files, convert EDB mailboxes to PST format, and directly migrate mailbox data to Office 365 and live Exchange Server.

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Recover corrupted, damaged, offline EDB files and convert Exchange EDB mailboxes to PST file format

Public Folder to Exchange

Migrate public folders from an Exchange offline EDB file to live Exchange Server

EDB to Live Exchange Migration

Directly migrate offline Exchange database (EDB) files to live Exchange server

Archive Mailbox to Office 365

Migrate archive mailboxes from offline EDB files directly to Office 365

EDB to Office 365 Migration

Directly migrate offline Exchange database (EDB) files to Office 365

Public Folder to Office 365

Migrate public folders from an offline Exchange EDB file to Office 365

OST, PST, MBOX, NSF, EML, MSG Export and Migration

EdbMails lets you to recover OST and PST files, export OST, PST, MBOX, NSF, EML, and MSG files to PST files, and directly migrate OST, PST, MBOX, and NSF mailbox data to Office 365 and live Exchange Server.

OST Recovery and Migration

Recover offline OST files, convert OST to PST, and migrate OST to Office 365 and Exchange Server

PST Recovery and Migration

Recover Outlook PST files , Export PST to PST, migrate PST to Office 365 and Exchange Server

MBOX Export and Migration

Export MBOX to PST, migrate MBOX to Office 365 and Exchange Server

NSF Export and Migration

Export NSF to PST, migrate NSF to Office 365 and Exchange Server

EML to PST Export

Convert EML files to Outlook PST files

PST to MSG Export

Convert Outlook PST file to MSG file format

MSG to PST Export

Export MSG files to Outlook PST files

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EdbMails lets you securely migrate mailboxes across Microsoft 365, Exchange, Google Workspace (G Suite), and IMAP-supported servers such as Outlook, Gmail, Zimbra, Zoho Mail, and cPanel, ensuring zero downtime.

Office 365 Migration

Migrate between Office 365 tenants, Office 365 to Exchange, Office 365 to PST, PST files to Office 365.

Exchange Migration

Migrate between any Exchange Servers, Exchange to Office 365, Exchange to PST, PST files to Exchange.

Tenant to Tenant Migration

Migrate Mailboxes, Public Folders, Archive Mailboxes between Office 365 Tenants.

Exchange to Office 365

Migrate Mailboxes, Public Folders, Archive Mailboxes from live Exchange server to Office 365.

Office 365 to IMAP

Migrate Office 365 to IMAP, Office 365 to Gmail, Office 365 to Outlook, Office 365 to Zoho etc.

Exchange to IMAP

Migrate from live Exchange Server to IMAP servers such as Gmail, Outlook, and Zoho Mail.

Public Folder to Office 365

Migrate Public Folders between Office 365 tenants with complete folder hierarchy and mailbox data integrity.

Exchange to PST

Export live Exchange Server mailboxes, public folders, and archive mailboxes to Outlook PST files.

SharePoint, OneDrive & Microsoft Teams Migration

EdbMails lets you migrate SharePoint sites, OneDrive data, Microsoft Teams, teams, channels, chats, permissions, and documents between Microsoft 365 tenants while maintaining the existing folder structure and data integrity.

SharePoint Online Migration

Migrate documents, lists, files and folders from SharePoint sites.

OneDrive for Business Migration

Migrate documents, lists, files, folders, private chats from OneDrive.

Microsoft Teams Migration

Migrate Teams, chats, channels, documents, files and folders etc.

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EdbMails offers secure Google Workspace migration to Office 365, Exchange, or IMAP, and export to PST covering emails, contacts, calendars and tasks.

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Migrate emails, calendars, contacts, tasks from Google Workspace to Google Workspace, office 365, Exchange and IMAP. Export to PST

Google Workspace to Office 365

Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to Office 365

Google Workspace to Exchange Server

Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to on-Premise Exchange Server

Google Workspace to IMAP

Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to IMAP, Outlook, Zimbra, Zoho etc.

Google Workspace to Google Workspace

Migrate emails, calendars, contacts, tasks between two Google Workspace / G Suite tenants

Google Workspace to PST

Export emails, calendars, contacts, tasks from Google Workspace / G Suite to Outlook PST files

IMAP Migration

EdbMails IMAP Migration tool lets you easily migrate emails from IMAP servers such as Outlook, Gmail, Zoho Mail, Zimbra, cPanel, and more. Supports IMAP to IMAP, Office 365, Exchange Server, PST, and bulk PST to IMAP migration.

IMAP Email Backup & Migration

Backup and migrate emails from IMAP servers to PST, Office 365, and On-Premises Exchange Server

IMAP to Office 365

Migrate emails, folders, and attachments from IMAP servers to Office 365

IMAP to Exchange

Migrate emails, folders, and attachments from IMAP servers to on-premises Exchange Server

IMAP to PST

Export emails, folders, and attachments from IMAP servers to Outlook PST files for backup

PST to IMAP

Migrate emails, folders, and attachments from bulk PST files to IMAP servers

Duplicate Remover

EdbMails Duplicate Remover lets you easily remove duplicate items from Office 365 and Exchange Server, and from IMAP, Outlook, Gmail, Zimbra, Zoho Mail, etc., ensuring a clean and organized mailbox.

Remove Duplicates

Easily clean up your Office 365, Exchange, Outlook and IMAP accounts by removing duplicate emails.

Remove Duplicates from Office 365

Remove duplicate emails, calendars, contacts, journal tasks, etc. from Office 365.

Remove Duplicates from Exchange Server

Remove duplicate emails, calendars, contacts, journal tasks, etc. from live Exchange Server.

Remove Duplicates from IMAP, Outlook

Remove duplicate emails, attachments from IMAP, Outlook, Gmail, Zimbra, Zoho Mail etc.

Exchange, SharePoint, OneDrive, Teams and Office 365 Backup

EdbMails enables secure, automated backup and recovery for Microsoft 365 services including Exchange Online, SharePoint, OneDrive, Teams, and Live Exchange Server with complete data protection and restore flexibility.

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Incremental, Granular, Encrypted and Compressed Office 365 Mailboxes Backup

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Incremental, Granular, Encrypted and Compressed Exchange Mailboxes Backup

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Backup Online site collections, Team sites, Office 365 groups, all documents etc.

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EdbMails Data Recovery Software lets you recover permanently deleted data, including photos, videos, documents, and archived files, from partitions on hard drives, SSDs, USB drives, SD cards, and external storage devices.

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Recover and restore permanently deleted data from hard drives, SSDs, USB drives, SD cards, and etc.

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OneDrive Pre-Migration Planning

Prepare Your OneDrive Migration Before the First Transfer

Prepare your OneDrive migration by reviewing source accounts, file volumes, sharing requirements, target readiness, and destination user mappings. This EdbMails guide outlines the essential planning work before the first transfer, helping administrators set clear priorities and avoid preventable disruption.

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What to Prepare Before Migrating OneDrive

OneDrive pre-migration planning converts the discovery findings into an executable migration design. It defines the users in scope, target readiness, source-to-target mapping, authentication setup, migration waves, incremental strategy and validation process before production data is moved.

The current EdbMails OneDrive guide already includes pre-migration activities for both source and target tenants, including Microsoft Entra app registration, administrator access, target-site readiness and mapping preparation.

Define the migration scope

Confirm exactly which OneDrive users and sites will move. Separate required content from obsolete or out-of-scope data and assign every user to a pilot or production wave.

Prepare the destination accounts

Make sure the required target users exist and their OneDrive sites are available. Resolve renamed accounts, changed domains and ownership differences before migration starts.

Prepare Microsoft Entra application registration

Create separate source and target OneDrive migration apps in Microsoft Entra ID. Use the documented Microsoft Graph application permissions, grant admin consent and keep the source and target credentials separate.

Use the OneDrive Manual App Registration guide for the exact current EdbMails configuration.

Confirm administrative access to OneDrive sites

The current EdbMails workflow requires the administrator to have access to the OneDrive sites involved in the migration. Confirm the required source and target access before scheduling the pilot.

Design source-to-target user mapping

Prepare the expected mapping before loading the users in EdbMails. Review automatic matches and identify users that will require manual mapping because of changed domains, names or target ownership.

Design migration waves

Group users into manageable batches based on business unit, priority, data volume or project schedule. Reserve time between waves for log review, validation and exception remediation.

Plan for source changes

If users remain active during the migration period, include a later incremental pass. Keep the same migration computer for previously migrated sites so the documented local incremental metadata remains available.

Define validation and acceptance criteria

Before migration begins, decide how success will be measured. Include migration-log review, representative target-account validation and explicit checks for any business-critical metadata, sharing or access requirements.

Prepare the pilot run

Select representative users, confirm target readiness and execute the pilot before the main migration waves. Record any changes to the procedure so the production process is based on a tested configuration rather than assumptions.

Frequently Asked Questions

What is OneDrive pre-migration planning?
It is the stage that converts discovery findings into an executable migration design, defining scope, target readiness, mapping, authentication, waves, incremental strategy and validation before production data moves.
How is pre-migration planning different from the assessment?
The assessment discovers the environment, while pre-migration planning turns those findings into the design: scope, mapping, authentication, waves and validation.
How do I define the migration scope?
Confirm exactly which OneDrive users and sites will move, separate required content from obsolete or out-of-scope data, and assign every user to a pilot or production wave.
How do I prepare the destination accounts?
Make sure the required target users exist and their OneDrive sites are available, and resolve renamed accounts, changed domains and ownership differences before migration starts.
How do I prepare Microsoft Entra application registration?
Create separate source and target OneDrive migration apps, use the documented Microsoft Graph permissions, grant admin consent and keep the source and target credentials separate.
What administrative access is required?
The administrator must have access to the OneDrive sites involved in the migration, so confirm the required source and target access before scheduling the pilot.

How do I design the source-to-target mapping?
Prepare the expected mapping before loading users in EdbMails, review automatic matches and identify users that will require manual mapping because of changed domains, names or target ownership.
How do I design migration waves?
Group users into manageable batches by business unit, priority, data volume or schedule, and reserve time between waves for log review, validation and exception remediation.
How do I plan for source changes?
If users remain active during the migration period, include a later incremental pass and keep the same migration computer for previously migrated sites so the local incremental metadata remains available.
How do I define validation and acceptance criteria?
Decide up front how success will be measured, including migration-log review, representative target-account validation and explicit checks for business-critical metadata, sharing or access.
Why prepare the pilot run in advance?
Executing a tested pilot means the production process is based on a verified configuration rather than assumptions, which reduces risk in the main waves.

Related OneDrive migration resources

OneDrive Migration Tool

OneDrive Migration Assessment

OneDrive Migration Project Plan

OneDrive Migration Best Practices

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