public void setCreatedOn(java.util.Date createdOn) {
        this.createdOn = createdOn;
    }
<p>
The date on which an offering transaction was created.
</p>

@param createdOn
       The date on which an offering transaction was created.
aws-java-sdk-devicefarm/src/main/java/com/amazonaws/services/devicefarm/model/OfferingTransaction.java