One of the benefits of the Fundraising receipting function is the ability to assign receipting intervals to donors. For example, if you set the receipting interval to annual, the donor receives one receipt per year.
Other donors may have a monthly donation schedule and receive a receipt every 30 days. By enabling a receipting interval option, the donor's receipts are filtered out from the rest of the auto-generated receipts until the desired receipting interval has passed.
The Last Receipt Date field on the Donor Data tab of the Manage customers window is updated when a receipt is issued. The last date that a receipt was printed for the donor is displayed on the Donor Data tab.
Receipts are printed when the interval preference is greater than or equal to the difference between the current receipts issued date (system date) and the donor's Last Receipt Date. For example, a donor's receipt interval is set to Monthly and the donor makes a new gift (with payment) within 30 days after their last receipt was printed. If an auto-receipt run is initiated on the 31st day after the last receipt was printed, a receipt prints for the gift. However, a receipt does not print if a receipt run is initiated within 30 days after the donor's last receipt was printed.
Receipting intervals for customers are selected in the customer's Donor Data tab on the Manage customers window. See Adding Fundraising Information to a Customer Record.