public void setLastErrorMessage(String lastErrorMessage) {
        this.lastErrorMessage = lastErrorMessage;
    }
<p>
The message indicating that the source account aggregation failed due to an error.
</p>

@param lastErrorMessage
       The message indicating that the source account aggregation failed due to an error.
aws-java-sdk-config/src/main/java/com/amazonaws/services/config/model/AggregatedSourceStatus.java