Migration Manager for Active Directory

LDAP filtering limit

Good Morning, 

I use a LDAP filter to manage only the objects i'd like to migrate from source to destination forest.

At the moment this work fine, but i need to add also one other piece in the filter.

Do someone know the maximum length of the LDAP filter that I can set? Seems that the maximum length is 405 characters.

Thank you so much

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  • "I use a LDAP filter to manage only the objects i'd like to migrate from source to destination forest."

    So it sounds like you are using a custom filter in the the directory synchronization agent to select objects that it will copy from source to target.

    I'm not aware of a length limit on the LDAP filter however, I would like to suggest that you use migration sessions to create your objects instead.

    The limitation of your approach is that you can only place those objects into a single target OU and you cannot make any changes to those objects as you copy them - for example, rename samaccount or populating additional attributes.

    If I may suggest that you could still use your same LDAP filter, but instead use it in conjunction with a Powershell command to generate a tab-delimited input file for a migration session that you can then run to create your objects.  The output file must contain the samaccountnames of the objects so your Powershell command would look something like this:

    get-aduser -ldap "(extensionattribute1=migrateme)" -properties samaccountname | select samaccountname | Export-Csv "objects_to_migrate.txt" -NoTypeInformation -Delimiter $([char]9)

    Take the output file and process it with a migration session.  If you like, you can break it up into different lists so that you can place the objects into different target OUs.

    Something to think about.

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