Suresh,
You can do this in a World Writer by using the F4311 only as the file.
You will need to create 2 new fields in the World Writer, one called $NL
(New Last Status) and $NN (New Next Status). Under the definition for
these, define $NL as your current Next Status and under the $NN define
it as 993. After this has been done, then place a 7 next the PDLTTR
field and assign the $NL to it and a 7 next to PDNXTR field and assign
the $NN. Then you will need to go to menu G8231, you will need to use
option 14 and 15 to give yourself access to update for the WW group and
then the file and the two fields PDLTTR and PDNXTR.
After you have done all of this you can then run the WW with the Data
Selection for the PO's you want to close.
If you need more information than this, I can send you a word document
with some screen captures showing you more details off line to your
email.
Jim Rubino