Problem creating Po from Pr.

Hello

Experts,

when I am trying to create a PO eith ref to PR .It is allowing me.

For a single PR to multiple PO if quanity of PR is consumed totaly then in one client in same server it is giving the SAP standard

error 'Materials of requisition 10000671 item 00010 alr. ordered in full', but in other client in same server system is allowing me to create that PO though all quanity of PR is consumed by the earlier PO.

Please help.