You can contact DQE to ask for a licence number at support_dqe@dqe-software.com or submit a request.
In that case, the support will send you the licence to put in the appropriate field in the back end.
Magento : Get a licence number
You can contact DQE to ask for a licence number at support_dqe@dqe-software.com or submit a request.
In that case, the support will send you the licence to put in the appropriate field in the back end.