As mentioned in the previous answer, the case number is identical to the submission number, for cases with a single product. GMP Inspections however have more than one submission per case, and in that situation the case number is different from all the submission numbers. Applicants may always make reference to the submission number, as this is always related to a case, once the application has been submitted. The case number is not currently displayed in IRIS. Please raise a ServiceDesk ticket to request the inclusion of the case number in the IRIS portal, for GMP cases, or alternatively the inclusion of the submission number in the notification received.