I created my own web application hosted on HCP as HANA XS package and after creating a role with access rights and assigning it to my user as described on help.hana.ondemand.com I was able to access it.
As the next step I would like to make it publicly available. I managed to provide SELECT rights on my schema to PUBLIC via the SQL console. But when I tried to grant application privileges to PUBLIC (via the systems view) I got an error message telling me that I don't have the necessary authorizations. Does anybody know how to solve this instead?