SharePoint Importer
Introduction
The Microsoft SharePoint Importer allows migrating documents, folders, list items and lists/libraries to SharePoint 2013, 2016, and 2019 offering following features:
Import documents to Microsoft SharePoint Document Library items
Import folders to Microsoft SharePoint Document Library items
Import list items to Microsoft SharePoint Document Library items
Import lists/libraries to Microsoft SharePoint Sites
Set values for any columns in SharePoint, including user defined columns
Set values for SharePoint specific internal field values
Create documents, folders and list items using standard SharePoint content types or custom content types
Set permissions for individual documents, folders, list items and lists/libraries
Set the folder path and create folders if they don’t exist
Apply Content Types automatically to lists/libraries if they are not applied yet
Delta migration
Import versions (minor or major, automatic enabling of versioning in the targeted document library)
Import files with a size up to 15 GB (depending on the target SP version)
Installation
To install the main product components, consult the migration-center Installation Guide document.
The migration-center SharePoint Importer requires installing an additional, separate component besides the main product components. This additional component is able to set system values (such as creation date, modified date, author and editor) as well as taxonomy values for your objects. It is designed to run as a Windows service and needs the .NET Framework 4.7.2 installed on your computer, which is running this service as well as the migration-center Job Server.
This component must be installed in all machines where the migration-center server components is installed.
To install this additional component, it is necessary to run an installation file, which is located within the
SharePoint component folder of your migration-center Job Server installation location, which is by default C:\Program Files (x86)\fme AG\migration-center Server Components <version>\lib\mc-sharepoint-online-importer\CSOM_Service\install. This folder contains the file install.bat, which must be executed with administrative privileges.
After the service is installed you will need to start it manually for the first time, after that the service is configured to start automatically as soon as the computers operating system is loaded.
In case it is necessary to uninstall this component, the file uninstall.bat must be executed.
Configuration
The migration-center SharePoint Importer can import objects generated by any of the available (and compatible) scanners. Most scanners can store the data they extract from the source systems they access in either a local path, or a UNC network path.
As is the case with all importers, they need to able to access the files extracted by a scanner in order to import.
See the respective scanner’s user guide for more information on configuration parameters if necessary.
Limitations and known issues
The SharePoint on-premise importer supports only the following authentication types:
NTLM Windows authentication (authenticationMethod = direct)
AD FS SAML token-based authentication (authenticationMethod = adfs)
Kerberos Windows authentication is currently NOT supported.
Due to restrictions in SharePoint, documents cannot be moved from one Library to another using migration-center once they have been imported. This applies to Version and Update objects.
Moving folders is only supported for SharePoint 2016 and later.
Moving folders is only supported within the same site, i.e. the importer parameter "serverURL" and the system attribute "site" must have the same values for the initial and any update import runs.
Even though some other systems such as Documentum allow editing of older versions, either by replacing metadata, or creating branches, this is not supported by SharePoint. If you have updates to intermediate versions to a version tree that is already imported, the importer will return an error upon trying to import them. The only way to import them is to reset the original version tree and re-import it in the same run with the updates.
Running multiple Job Servers for importing into SharePoint must be done with great care, and each of the Job Servers must NOT import in the same library at the same time. If this occurs, because the job will change library settings concurrently, the versioning of the objects being imported in that library will not be correct.
The SharePoint system has some limitations regarding file names, folder names, and file size. Our SharePoint importer will perform the following validations before a file gets imported to SharePoint (in order to fail fast and avoid unnecessary uploads):
SharePoint 2013
Max. length of a file name: 128 characters
Max. length of a folder name: 128 characters
Invalid leading chars for file name: SPACE, PERIOD
Invalid leading chars for folder name: SPACE, PERIOD
Invalid trailing chars for folder name: SPACE, PERIOD
Invalid file or folder names: "AUX", "PRN", "NUL", "CON", "COM0", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9", "LPT0", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9"
Consecutive PERIOD characters are not allowed in file or folder names
The following characters are not allowed in file or folder names: ~ # % & * { } \ : < > ? / | “
Max. length of a file path: 260 characters
Max. size of a file: 2 GB
Max. size of an attachment: 250 MB
SharePoint 2016
Max. length of a file name: 128 characters
Max. length of a folder name: 128 characters
Invalid leading chars for file name: SPACE, PERIOD
Invalid leading chars for folder name: SPACE, PERIOD, ~
Invalid trailing chars for folder name: SPACE, PERIOD
Invalid file or folder names: "AUX", "PRN", "NUL", "CON", "COM0", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9", "LPT0", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9"
The following characters are not allowed in file or folder names: " # % * : < > ? / \ |
Max. length of a file path: 260 characters
Max. size of a file: 10 GB
Max. size of an attachment: 250 MB
SharePoint 2019
Max. length of a file name: 400 characters
Max. length of a folder name: 400 characters
Invalid leading chars for file name: SPACE, PERIOD
Invalid leading chars for folder name: SPACE, PERIOD, ~
Invalid trailing chars for folder name: SPACE, PERIOD
Invalid file or folder names: "AUX", "PRN", "NUL", "CON", "COM0", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9", "LPT0", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9"
The following characters are not allowed in file or folder names: " * : < > ? / \ |
Max. length of a file path: 400 characters
Max. size of a file: 15 GB
Max. size of an attachment: 250 MB
SharePoint Importer Properties
To create a new SharePoint Importer, create a new importer and select SharePoint from the Adapter Type drop-down. Once the adapter type has been selected, the Parameters list will be populated with the parameters specific to the selected adapter type. Mandatory parameters are marked with an *.
The Properties of an existing importer can be accessed after creating the importer by double-clicking the importer in the list or selecting the Properties button/menu item from the toolbar/context menu. A description is always displayed at the bottom of the window for the selected parameter.
Multiple importers can be created for importing to different target locations, provided each importer has a unique name.
Common importer parameters
SharePoint Importer parameters
The configuration parameters available for the SharePoint Importer are described below:
Hints for ADFS Configuration
The following screenshots shows where you can find the necessary values for the "adfsEndpoint" and "adfsRealm" parameters in the Windows AD FS configuration tool:
Content Integrity Check
Starting from migration-center 3.5 the SharePoint importer has the option of checking the integrity of each document’s content after it has been imported. This will be done if the “checkContentIntegrity” parameter is checked and it will verify only documents that have a generated checksum in the Source Attributes.
Currently the only supported checksum algorithm is MD5 with HEX encoding.
For certain types of documents such as Office documents and also .MSG documents, “Document Information Panel” is activated and SharePoint changes the content slightly upon upload. This will cause the integrity check to fail for those documents and there is no workaround so far, other than importing without the content integrity check or finding a way to disable this feature directly in SharePoint.
Working with the migration-center SharePoint object type
Migration Sets
Documents
Documents targeted at a Microsoft SharePoint Document library will have to be added to a migration set. This migration set must be configured to accept objects of type <source object type>ToSharePoint (document).
Create a new migration set and set the <source object type>ToSharePoint(document) in the Type drop-down. This is set in the -Migration Set Properties- window which appears when creating a new migration set. The type of object can no longer be changed after a migration set has been created.
The migration set is now set to work with SharePoint documents.
Links
The same procedure as for documents also applies to links about to be imported to SharePoint Online. For links the object type to select for a migration set would be <source object type>ToSharePoint(link).
Folders
The same procedure as for documents also applies to folders about to be imported to SharePoint. For folders the object type to select for a migration set would be <source object type>ToSharePoint (folder).
Lists
The same procedure as for documents also applies to lists or libraries about to be imported to SharePoint. For lists or libraries the object type to select for a migration set would be <source object type>ToSharePoint (list).
List Items
The same procedure as for documents also applies to list items about to be imported to SharePoint. For list items the object type to select for a migration set would be <source object type>ToSharePoint (listItem).
Transformation rules
Documents
<source object type>ToSharePoint (document) type objects have a number of predefined rules listed under Rules for system attributes in the -Transformation Rules- window. These rules are described in the table below.
Other rules can be defined by the user to set various SharePoint column values, such as Name, Title, checkin_comment to name a few of the more frequently used. Any SharePoint column which exists in the document library targeted by the contentType rule can be set by creating a rule and associating it with the corresponding column in the associations tab.
Links
SharePoint Online supports documents with the file format ".url". We call these documents "link documents" since they do not have real content but just point to another document in SharePoint Online or to an external web site. The importer will create the necessary content of the link documents on the fly. Thus, the importer will ignore the content of any source object that is imported as a link document because it will import the generated link content instead.
Links have similar rules as documents. The system rules for links are listed below.
Folders
Folders have different rules as documents. The exact system rules applicable to folders are listed below.
List Items
List items have different rules as documents. The exact system rules applicable to list items are listed below.
Lists
Lists have different rules as documents. The exact system rules applicable to lists are listed below.
Object Type definitions
Documents, Folders and List Items
In order to associate transformation rules with SharePoint columns, a migration-center object type definition for the respective content type needs to be created. Object type definitions are created in the migration-center client. To create an object type definition, go to Manage/Object Types and create or import a new object type definition. In case your content type contains two or more columns with the same display name, you need to specify the columns internal names as attribute names.
Working with object type definitions and defining attributes is a core product functionality and is described in detail in the Client User Guide.
A Microsoft SharePoint content type corresponds to a migration-center object type definition. For the Microsoft SharePoint connector, an object type definition can be specified in four ways, depending on whether a particular SharePoint content type is to be used or not or multiple but different content types using the same name across site collections:
My Content Type describes explicitly a SharePoint content Type named My Content Type defined either in the SharePoint document library or at Site Collection level
@My Document Library describes the SharePoint document library named My Document Library using only columns, which are defined explicitly in the SharePoint document library My Document Library
My Content Type;#Any Custom Value describes a SharePoint content type named My Content Type. Everything after the delimiter ;# will be cut off on importing
@My Document Library;#Any Custom Value describes the SharePoint document library named My Document library using only columns, which are defined explicitly in the SharePoint document library My Document Library. Everything after the delimiter ;# will be cut off on importing.
The migration-center SharePoint importer is able to modify the following SharePoint specific internal field values for documents, list items and folders: Created By, Modified By, Created and Modified. To set these internal field values it is necessary to create attributes named Author, Editor, Created and Modified and associate them in the transformation rules appropriately.
Lists
Importing lists or libraries into SharePoint is a little bit different than for documents, folders or list items, since the migration-center SharePoint Importer sets Microsoft defined attributes, which are not visible to the user. In order to set those attributes, it is necessary to create object type definitions for each type of list template (see List of possible list templates). The SharePoint Connector is able to set any possible attribute of a list. See List of possible list attributes for more information about possible attributes.
Object Values
File Reader
The SharePoint Importer is able to read values from files. This might be necessary if the length of a string might exceed the maximum length of an Oracle database column, which is 4096 bytes.
To tell the SharePoint Importer reading strings from a text file, the filepath of the file containing the value must be placed within the markup <@MCFILE>filepath</@MCFILE>.
The File Reader does not read values from files for the following attributes: Check-In Comment, Author, Editor, Creation Date, Modified Date.
Example:
Assuming you have a file at path \\scanlocation\temp\1\4a9daccf-5ace-4237-856c-76f3bd3e3165.txt you must type the following string in a rule:
<@MCFILE>\\scanlocation\temp\1\4a9daccf-5ace-4237-856c-76f3bd3e3165.txt</@MCFILE>
On import the SharePoint importer extracts the contents of this file and adds them to the associated target attribute.
Filename
The SharePoint Importer is able to modify the filename of a file, which is imported to SharePoint. To set the filename, you must create a target attribute named Name in the object type definition. You can associate any filename (without an extension) for a document. The importer automatically picks the extension of the original file or of the file specified in the rule mc_content_location. If the extension needs to be changed as well, use the system rule fileExtension in order to specify a new file extension. You can also change only the extension of a filename by setting fileExtension and not setting a new filename in the Name attribute.
Example:
Original content location: \\Fileshare\Migration\Scan\566789\content.dat
Check-In Comment
The SharePoint Importer can set the check-in comment for documents. To set the check-in comment, you must create a target attribute named checkin_comment in the object type definition. You can associate any string to set the check-in comment
Author
The SharePoint Importer can set the author for list items, folders and documents. To set the author, you must create a target attribute named author in the object type definition. The value of this attribute must be the loginname of the user, who shall be set as author.
Editor
The SharePoint Importer can set the editor for list items, folders and documents. To set the editor, you must create a target attribute named editor in the object type definition. The value of this attribute must be the loginname of the user, who shall be set as editor.
Creation Date
The SharePoint Importer can set the creation date for list items, folders and documents. To set the creation date, you must create a target attribute named created in the object type definition. The value of this attribute must be any valid date.
Modified Date
The SharePoint Importer can set the modified date for list items, folders and documents. To set the modified date, you must create a target attribute named modified in the object type definition. The value of this attribute must be any valid date.
Lookup values
The SharePoint Importer can set lookup values. If you want to set a lookup value, you can either set the ID of the related item or the title. If you set the title of the document and there is more than one item with the same title in the lookup list, the SharePoint Importer marks your import object as an error, because the lookup item could not be identified unequivocally.
The importer will treat any numeric value provided as the ID of the lookup value. In case you want to look up the value by title and the title is numeric, please surround the numeric value with " characters. The importer will automatically remove any " characters in the provided value before trying to match it with the title of the lookup field.
URL values
The SharePoint Importer can set URL values. You can define a friendly name as well as the actual URL of the link by concatenating the friendly name with ;# and the actual URL.
Example: migration-center;#http://www.migration-center.com
Taxonomy values
The SharePoint Importer can set taxonomy values and migration-center provides two ways to do it. The first possibility is to use the name of the Taxonomy Service Application, a term group name, a term set name and the actual term. Those four values must be concatenated like the following representation:
TaxonomyServiceApplicationName>TermGroupName>TermSetName>TermName
Example: Taxonomy_+poj2l53kslma4==>Group1>TermSet 1>Value
The second possibility is to use the unique identifier of the term within curly brackets {}.
Example: { 2e9b53f9-04fe-4abd-bc33-e1410b1a062a}
Multiple values can be set also but the attribute has to be set as a Multi-value Repeating attribute.
In case you receive an error on setting taxonomy values make sure the TaxonomyServiceApplicationName is up to date and valid since Microsoft changes the identifier at certain times.
Performance
The performance of the import process is heavily impacted by some specific features, namely autoAdjustVersioning, autoAdjustAttachments, autoAddContentTypes, autoCreateFolders, setting taxonomy values, and setting system attributes like Author, Editor, Created, and Modified.
In case you are importing an update for a major version the increase in processing time can get up to three times compared to a normal document import. Combining all the above-mentioned features over the same document can increase the time for up to four times. Take this into consideration when planning an import as the time might vary based on the above described features.
You will achieve the highest import performance if you perform the appropriate configuration of your SharePoint system before you start the import and disabled the above-mentioned features in the SharePoint importer.
Appendix
List of possible list templates
List of possible list attributes
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