Don't allow payment of an invoice w/electronic payment method with effective date that will be rejected by EASI. Example: Entering an effective date of 8/30/19 when the effective date EASI expects must be on or before 8/22/19.
It just causes the user to become confused, and ultimately creates double work since they need to void and repay.
Instead when they pay an invoice w/electronic payment it should tell them it cannot be paid as the transaction's effective date is out of the allowed window.