Deleted Purchase Orders

[AIMAM]

Hi,

We are working in Oracle Applications 11i. A user has complained that 4 purchase orders do not exist in the reports. I have checked the database table <b>po_headers_all </b> and there are no records with the desired <b>segment1</b> numbers. My guess that these purchase orders were deleted from the application interface. Any other suggestions?

So, I have two inquiries:

1. is there any table that contains archived purhase orders or historical information where i can find the missing information?

2. how can i disable the <b>DELETE</b> priviledge from the Purchasing buyers, responsibility and from the Purchase Orders form <b>POXPOEPO</b> ?




Any help in this matter will be appreciated..