Personalize Default where in Autocreate Requisition

Hii All,

Can you help me to change Default Where in Autocreate Requisition form.

I have been created the personalize in

trigger event "WHEN-NEW-BLOCK-INSTANCE"

trigger object "REQ_LINES"

and action type "Property"

object type "Block"

target object "REQ_LINES"

property name "DEFAULT_WHERE"

value "1 = 1

     AND -1 = -1

     AND ((reqs_in_pool_flag = 'Y' AND authorization_status = 'APPROVED'))

     AND requisition_line_id = 581377"

But doesn't working. Can you help me??