A method begins by a by a first device of a dispersed storage network (DSN) sending a set of write revision requests to storage units of the DSN. The method continues with one of the storage units generating a write revision response regarding a potential write conflict. The method continues with the first device receiving the write revision responses to produce a set of received write revision responses and interpreting the set of received write revision responses to determine whether a write conflict exists. When the write conflict exists, the method continues with the first device issuing a set of write roll back requests to the storage units. When the write conflict does not exist, the method continues with the first device issuing a set of next phase write requests to the storage units regarding storing revised encoded data slices.