IBM SC33-1683-02 - Manual (Page 143)

UEQTIMED
Failed because quiesce was canceled due to timeout
(UEQSD and UEIMQSD only).
UEQMIGRT
Failed because the data set has been migrated.
UEPQCONF
Address of a 1-byte field indicating the reason why the quiesce or
unquiesce was rejected (for UEQREJEC only). Possible values are:
UEQUIINP
Quiesce is in progress (UEQSD and UEIMQSD status
only).
UEUNQINP
Unquiesce is in progress.
UENBWINP
Non-BWO copy is in progress.
UEBWOINP
BWO copy is in progress.
UEUNKINP
Unknown event is in progress.
Return codes
UERCNORM
Continue processing.
A return code of UERCPURG is not allowed.
XPI calls
All can be used.
API and SPI calls
You can use CICS API and SPI commands at this exit. In general, all can
be used, but you must not use the QUIESCESTATE keyword of EXEC
CICS SET DSNAME.
file control quiesce send exit
Chapter 1. Global user exit programs 111