While I would love to send acknowledgements within 48 hours of receiving a gift, that has not been the practice for this office. (I'm working on it.) We send acknowledgements once a week, including tributes. If there is more than one gift IMO/IHO someone (and the person to receive the notification for the gifts is the same) we send one letter with an enclosed list.
At previous organizations, where we processed acknowledgements daily, if we were expecting multiple gifts in tribute of someone, we would run them weekly with a list. Otherwise, tributes were sent as gifts were received. Generally speaking, if we were mentioned in the obit, we planned on sending weekly tribute notifications.
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Michelle Lancto
Elms College
lanctom@elms.edu------------------------------