# Adding MAHs and users

The administration of marketing authorization holders is done in the user administration system, VigiUserAdmin. To make a change, follow the steps below.

1. Go to VigiUserAdmin via the following link <https://vigiuseradmin.who-umc.org/>
2. Log in with your credentials, email and password.
3. If it is your first time loggin in, you will need to acquire a new password by clicking on “Forgot your password?” and following the instructions.
   \
   To add a marketing authorization holder, click on “Add MAH organisation”.
   \
   A window will appear where you will need to fill in the following information.
   \
   Short name
   \
   Long name
   \
   Sender organisation
   \
   Sender identifier
   \
   Receiver identifier
   \
   Ensure that “Country” and “Reciever identifier” is correct and click Save.
   \
   The MAH will now appear in the list of marketing authorization holders.


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