Fund Assignment refers to how funds are to be consumed as spends type business processes (e.g., invoices and payment applications) come in against the base commit that is being funded.
Initial assignment rules are defined in the Assignment tab on the commitment funding Properties window. Additional details can be defined in the Fund Assignment window. To access the fund assignment window, click the Fund Assignment button on the commitment funding sheet or SOV sheet for the base commit. The Fund Assignment window is not accessible until the SOV sheet has been created.