PO error

[mazher.erp]

HI,

We have a issue here.

We use implementing iproc and PO for a customer. In iproc we use the non catalog request. No items are defined here and requisition is based on the categories only. Hence no sub inventory is defined (only expense items). When we do the requisition through iproc we are able to get the charge account defaulted (have defined expense rules for 3 segments-categories & rest 4 segment from employee expense account in HR)

When we create a PO we are not getting the charge account defaulted. The error we are getting is ?APP-FND-00588? An error has occurred while looking up a flex field segment combination