https://www.epo.org/en/service-support/faq/myepo-services/web-form-filing/acknowledgment-receipt/how-will-receipt-be

How will receipt be acknowledged?

All successful submissions are acknowledged via email.

If you wish to receive a detailed acknowledgement of receipt, please check the box indicated below.

If this box is checked, a detailed acknowledgement will be available for download on the confirmation screen as soon as the submission process is complete and attached to the acknowledgement sent via email.