public void setApplicationId(String applicationId) {
        this.applicationId = applicationId;
    }
<p>
The identifier of the Amazon Q Business application associated with the conversation.
</p>

@param applicationId
       The identifier of the Amazon Q Business application associated with the conversation.
aws-java-sdk-qbusiness/src/main/java/com/amazonaws/services/qbusiness/model/DeleteConversationRequest.java