[Koha] un-receiving?

Hello, We are preparing for our fiscal year rollover and found a few human errors. Is there anyway to "un-receive" something? Meaning, it's already been marked rcvd, but it was marked in error and we want it to remain an open order. It looks like this isn't possible, but I wanted to be sure. Thanks. Karen Kohn Collection Development Manager Landman Library Arcadia University 450 S. Easton Road Glenside, PA 19038 ph: 215-572-8528 fax: 215-572-0240