Best practice to associate multiple funding sources to the cost

Summary:

Public Sector clients and clients engaged in huge construction projects have often requirements around funding projects from multiple funding sources(internal as well as external). When a requisition or purchase order is being issued, oracle wants a sponsored project to be linked to the specific award/funding source. Alternatively, users can now use :Funding pattern set up and distribute the cost. However, this functionality does not meet the industry needs.

As a Grant recipient, our client would like to get reimbursed for the allowable cost incurred first. There is no way to designate that at the time or PO or procurement contract with the Vendor. Therefore, may a times, clients have to manually adjust the invoice to ensure that they can get the billing and reimbursement done.