SysTools Migrator – Technical Help (Exchange to Office 365)







Common Pre-Requisites

  • The source account need to be impersonated
  • Provide the UPN.

Other Pre-Requisites for Migrating Emails



Features (Supported & Not Supported)


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Feature Point (Supported) Description
Demo Version License Only two users
Date Filter From - To supported (on Creation date time)
Folder Structure The application maintains folder hierarchy as it is.
Unicode character Names For Folders Yes, if in accordance with Outlook rules
Folder Name Existing conflicts Folders remain unaffected and gets used
Archive Folder Supported(Archive system Folder only)
Categories, Mail Attachments Supported
Read/Unread Status Maintained
Mail Timestamp Retention Mail Sent/Received times maintained. Drafts get migration timestamp
Time-zone difference Adjusted for (The timestamps will get set in accordance with the destination time zone)
Flags/tags Supported above exchange 2013 and later
Priority, Status, Conversation thread, Junk email Supported
Body format Supported
Exchange 2007,2010,2013,2016,2019 Supported
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Feature Point (Not Supported) Description
Deleted item Not Supported
Signature setting Not Supported
Share mailbox and group mailbox Not Supported
Folder policies, POST Item (RSS Feed) Not Supported
Search Folder (system folder) Not Supported
Archive Mailbox, Mail Folder contain Calendar Item Not Supported

Shortcomings and Limitations


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Limitation Reason
All folders present even if they are outside the date filter’s range The application is designed to preprocess the folders first and then the files.
Exchange 2003 Not supported
Meeting request ,meeting response not getting Destination ItemID API issue

API Issues


The application is using Microsoft Exchange Web Service API for reading. for writing, it is using the Microsoft Graph API which a REST based API for interacting with Office 365, also Microsoft Exchange Web Service API is used for Outlook 365 communication


Graph API : https://docs.microsoft.com/en-us/graph/api/overview?view=graph-rest-1.0

EWS : https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/start-using-web-services-in-exchange

Other Pre-Requisites for Migrating Contacts



Features (Supported & Not Supported)


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Feature Point (Supported) Description
Demo Version License Only two users
Date Filter From - To supported on Created Date
Folder Structure Original Structure Maintained
Foreign language Supported
Email address 1,2,3 Supported
Body, Contact photo Supported
Phone No, Birthday Supported
Relationship Supported
Body Format Plain Text Supported
Nick Name, First Name, Last Name, Manager, Middle Name, File As Supported
Company, IM Address, foreign language Email address Supported
Duplicate Contact, Delta Migration Supported
Job Title, Department, Assistant, Manager Supported
Phone: Other category Supported (Added in body)
Delta Migration, Address Supported
Fax Supported (Added in body)
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Feature Point (Not Supported) Description
Contact Attachment Not Supported
Custom filed Not Supported
Anniversary Not Supported
Folder hierarchy Not Supported
Shared Contact Not Supported
Other : Hobbies,School,Personal web page , Anniversary,Account ,customer id and government id, biling information, computer network name,mailing Address,location,internal-busy address Not Supported
System folder mapping Not Supported (new Contact folder is created and item is migrated into that folder )
Invalid Email Address Not Supported

Known Issues


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Issue Reason
List and Groups not supported no API endpoint
deleted items no API endpoint
Follow up Contacts no API endpoint
Date filters are not working on same instance second time Know issue

API Details:

For reading the application is using the Microsoft Exchange Web Service API.
For writing the application is using the Microsoft Graph API which a REST based API .

EWS: https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/start-using-web-services-in-exchange
Graph API: https://docs.microsoft.com/en-us/graph/api/overview?view=graph-rest-1.0

Other Pre-Requisites for Migrating Calendars



Features (Supported & Not Supported)


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Feature Point (Supported) Description
Exchange 2013,2016 Only two users
Folder Structure Supported
Date Filter On calendars Start Date (Process Time in UTC format)
Delta Migration Supported
Special Characters / Foreign Language Names Supported
Recurrence, Reminder Supported
Future Event The date range will be +1 year from current date
Attendees Supported (Include other domain)
Event Status, Time Zone, Show As Supported
Location, Body, Private, Categories, Importance Supported
Attendees mapping, Body format, All Day Event Supported
Different Time Zone for Start End, Occurrence Supported
File Attachment Supported
Daily Recurrence with every Workday Treat as Weekly recurrence
Default Event Filter we read event from 1990 to +1 from Current date
Same name calendar folder Mapped to Office 365 System Calendar folder
Event having Start and End Time zone different then source account time zone The Start and End time zone will get converted into time zone of which was provided to start and end time zone and it will get migrate accordingly.
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Feature Point (Not Supported) Description
Notification Not Supported
Mail Notification Not Supported
Shared Not Supported
Organizer Not Supported. Organizer name is not showing in new view of Office 365 on portal. It is showing organizer name as Required attendee
Multiple Organizer Not Supported
Embedded Attachment, Folder Color Not Supported
Event Follow up, Attendees Status Not Supported
RTF body format Not Supported

Shortcomings and Limitations


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Limitation Reason
Event Up to 4 MB supported API issue
Exchange 2003 not supported API issue
Date filters are not working on same instance second time Know issue
API Details:

For reading the application is using the Microsoft Exchange Web Service API.
For writing the application is using the Microsoft Graph API which a REST based API .

EWS: https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/start-using-web-services-in-exchange
Graph API: https://docs.microsoft.com/en-us/graph/api/overview?view=graph-rest-1.0

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