The requester must have the "Recalculate-Hierarchy" control access right on the nTDSDSA object for the DC. The type of modification can be add or replace, and the values specified in the LDAP Modify operation do not matter. The following shows an LDIF sample that performs this operation.
dn: changetype: modify add: recalcHierarchy recalcHierarchy: 1 -
The effects of recalcHierarchy are outside the state model. An update of recalcHierarchy causes the hierarchy table used to support the MAPI address book to be recalculated immediately.