2.2.3.10.2 RopSetReadFlags ROP Response Buffer
The following descriptions define valid fields for the response buffer of the RopSetReadFlags ROP ([MS-OXCROPS] section 2.2.6.10).
PartialCompletion: 1 byte boolean flag. A nonzero value indicates the server was unable to modify one or more of the Message objects represented in the MessageIds field.<15>