Weeks starts to count on tuesday how to make it starts counting on monday?
If you mean "the first week is the week that starts on Tuesday", you are wrong.
The first week by default is the week that has 4 or more days in it.
ISO 8601 - Wikipedia
You can influence the week function by using extra arguments. See here:
week - script and chart function ‒ Qlik Sense
BrokenWeeks ‒ Qlik Sense
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