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Individual user purchase order processing is controlled by a variety of variables, such as User account where the Account Filter and Role (and the Permissions assigned to those Roles) are defined for each user, User Preferences, Rules, etc.
Amending a Purchase Order
When using the Amend option on a Purchase order, you are not permitted to change the Vendor if the PO has already been invoiced/paid. You will also not be permitted to modify an existing item if that item has been invoiced/paid. The Amend option will allow you to cancel an item. The cancelled item will still be displayed on the PO but with a line crossing it out .
By default the system will give a warning if the budget's remaining balance will go negative. Remaining balance is either unencumbered balance or unencumbered balance - outstanding requisitions depending on whether the pre-encumbrance module is installed (see Admin/Modules) and on the specific rule(s) the district has enabled. However, this can be customized to suit the needs of the district (see rules org.ssdt_ohio.usas.model.po.DefaultBalanceCheckWarning and org.ssdt_ohio.usas.module.preencumbrance.POBalanceCheckWarningExcludePreencumbrances).
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USAS-R contains an optional module to provide support for the optional Classic USAS Requisition Approval functionality. If this module is enabled, a Custom Field will be available on the requisition to indicate it's status, and requisitions may only be converted to a purchase order after the status has been set to approved by a user with the appropriate security. This module also activates an optional "transmission status" Custom Field on the PO so that an outside purchasing system may optionally tell USAS whether the PO was already transmitted to the vendor.
Amending a Purchase Order
When using the Amend option on a Purchase order, you are not permitted to change the Vendor if the PO has already been invoiced/paid. You will also not be permitted to modify an existing item if that item has been invoiced/paid. The Amend option will allow you to cancel an item. The cancelled item will still be displayed on the PO but with a line crossing it out .