Anyone using the self service invoice functionality associated with iSupplier for internal users?

Payables User Guide offers the following:

Entering Self Service Invoices - Internal User

To grant internal users access to the Invoice Actions page to enter self service invoices,

grant the user the Payables Request responsibility. You do not need to implement

iSupplier Portal to grant this responsibility to users. Users with the Payables Request

responsibility can only create invoices in the Invoice Actions page. In addition, the

internal user will only have access to the suppliers that are part of the Organization that

the internal user belongs to. For example, if the user is in the North American

organization, he will only have access to suppliers assigned to that organization, and