The format of ROP request buffers and ROP response buffers that are specific to folder operations is specified in sections 188.8.131.52 through 184.108.40.206. For ROPs that require a folder identifier or a message identifier, the client needs to acquire those identifiers for the objects to be used in the ROP requests. For more details about acquiring message identifiers, including usages, restrictions, and notes, see [MS-OXCMSG].
Some fields are not included in the ROP specifications. The descriptions of ROP request buffers do not include the RopId field and the LogonId field. The descriptions of the ROP response buffers do not include the RopId field and the fields that specify handle indexes. For details about these fields, see [MS-OXCROPS] section 2.2.4.