When entering pledge payment information, if the amount of the payment is over the amount due on the payment to the pledge, you will be allowed to make the overpayment, receive a warning or receive an error and not be allowed to proceed. How the overpayment is handled depends on the value of system option 258. By default, system option 258 will be set to 0 (zero) indicating you do not wish to use the option and you wish to allow pledge overpayments.
System Option #258
Pledge Overpayment Control
The setting of this system option indicates whether the entry of an overpayment for a pledge will be allowed or will generate a warning or error.
0 - If set to 0, no amount validation occurs and overpayments are not checked.
1 - If set to 1, validation of the pledge payment entered occurs and a warning message displays when the amount exceeds the outstanding balance of the pledge. You may choose to ignore the warning and continue saving the pledge payment, or you may change the pledge payment amount.
2 - If set to 2, validation of the pledge payment entered occurs and an error displays when the amount exceeds the outstanding balance of the pledge. The correct pledge payment amount, i.e., less than the outstanding balance of the pledge, must be entered before the transaction can be saved. This validation also occurs with GiftLoader transactions.
The overpayment validation is performed when:
A user adds a pledge and payment to that pledge in the same batch.
A user enters multiple payments against a processed pledge in the same batch.
A user modifies a pledge payment to exceed the pledge balance.
A user modifies a pledge's balance in an unprocessed batch (closed or opened) and makes a modification to the pledge's payment amounts in another batch, and the payment exceeds the pledge balance.
However, it is not checked for multiple pledge payments to a processed pledge in multiple unprocessed batches. The overpayment logic is only checked on the initial Add; other modifications will be checked in the validation batch report.