This is the human-readable text explaining the remote error captured in rmtErrCode for this workflow instance, sparing an admin from decoding the numeric code manually. It is the field that turns an opaque error number into an actionable clue about what specifically failed during the remote step. For example, text like Peer not reachable next to a nonzero rmtErrCode confirms the workflow failed due to a communication problem with another chassis component rather than a data or firmware issue on the IOM itself.