QPURGE FM header

When IMS receives a QPURGE header, it halts processing on the demand-paged output message in progress.

QPURGE can be received by IMS only while an MFS demand-paged output message is active. The QPURGE FM header is the only FM header in the chain and is never followed by function management data. IMS replies to a QPURGE FM header with a QSTATUS. If IMS receives a QPURGE header to delete the demand-paged output message, the message is deleted only after IMS receives a sync-point response in reply to QSTATUS.

The QPURGE FM header is not sent by IMS.