Patent ID: 8032249

Claim:
A method, comprising: an agent of a materials handling facility picking items listed on a list of items into one of two or more receptacles, wherein each of the two or more receptacles has a mote comprising a communications interface for communicating with a materials handling facility control system, wherein the mote is coupled to a sensor on the receptacle configured to detect placement of an item in the receptacle, wherein the list of items lists a destination, in the materials handling facility, of each of the items on the list, wherein the listed destinations comprise two or more destinations in the materials handling facility, and wherein each of the two or more receptacles is assigned to a particular one of the two or more destinations in the materials handling facility; wherein for each item picked: the sensor on the particular receptacle in which the item is placed detects placement of the item in the particular receptacle; the mote communicates said detecting the placement of the item in the particular receptacle to the control system; and in response to said detecting the placement of the item in the particular receptacle by the sensor on the particular receptacle, the control system determines whether or not the particular receptacle is the receptacle assigned to the listed destination of the item; and for at least one item placed in an incorrect receptacle, in response to determining that the particular receptacle is not the receptacle assigned to the listed destination of the item, the control system indicates to the agent that the item was placed in an incorrect receptacle.