Performing this operation causes the DC to request a transfer of the Schema Master FSMO to itself, per the FSMO role transfer procedure documented in [MS-DRSR] section 22.214.171.124.3 (PerformExtendedOpRequestMsg, ulExtendedOp = EXOP_FSMO_REQ_ROLE). The requester must have the "Change-Schema-Master" control access right on the root of the schema NC replica. This operation cannot be performed on an RODC; an RODC will return the error unwillingToPerform / ERROR_INVALID_PARAMETER. The LDAP operation returns success after the transfer of the Schema Master FSMO has completed successfully.
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: becomeSchemaMaster becomeSchemaMaster: 1 -