The app does what i expect, however, if I add one row to the section access table, to include one more user, reload it, and publish it, this user recieves an "permission denied error".
As workaround, i have deleted the published app and then, publish the modified one.
In SAAS, the user id SA_SCHEDULER, is no longer relevant / not needed.
I would start simple with no reduction or omit, and see if you can get the section access to work.
Also you can load the table without Section Access and Section Application commands to see the data in a real table before you make it invisible and hidden with the above two commands.
the user id columns in SAAS do not usually have the domain prefix (that were in enterprise with some authentication options).