Issue with access to the dashboard pages via section access

[Peony]

Hi all.
Hope the power of community will help me to understand what am I doing wrong regarding access to the dashboard pages.🙏

I have a dashboard with 3 pages: A and B. Each page should be available to the certain list of users. Some of the users  may have an access to the only one page, others may have access to the both pages. Later there will be more pages and access combinations. 

My code is next:

Page:
Load * Inline [
PAGE
A
B
];

TEMPSectionAccess:
Load
ACCESS,
Upper(USERID) as USERID,
Upper(PAGE) as PAGE
From [Section Access.xlsx](ooxml, embedded labels, table is Sheet1);

Section Access;
SectionAccessTab:
Load
ACCESS,
USERID,
PAGE
Resident TEMPSectionAccess;

Section Application;

Drop Table TEMPSectionAccess;

Than to each page of the dashboard I applied next show condition:
For Page A     If(Match(PAGE,'A'),1,0)
For Page B    If(Match(PAGE,'B'),1,0)

Data that is taken from the Excel file is looks like this

When User1 login into the dashboard, this user see only page A. But when user User2 opens the dashboard, he see no pages at all. But I expected he would see both pages. And I can't understand why. 😢

[marcus_sommer · Accepted solution]

The reason is your match-query against PAGE which contained no explicit aggregation which means that implicitly only() is taken and User2 has two different values which results in NULL.

AFAIK it's not mandatory necessary to apply such expression else using directly the fields. Here an example as starting point: Sheet level access - Qlik Community - 1482009

[Peony]

@marcus_sommer Thank you for the answer and the link. Now my issue is solved.