Hi @Martull did you figure out any resolution on this? Actually I also stuck in updating the the weekDays to just set for couple of days like "sunday" and "monday" via azure CLI
AZ CLI - Set multiple values in a property - Pipeline Trigger

Hello,
I want to set the frequency of a property to more than one value. It is a Pipeline Trigger in Azure Data Factory.
If I do it via Azure Portal, I can retrieve the current value via CLI
az datafactory trigger show --factory-name poc-df-01 --resource-group poc-df-rg --name trigger_poc
To set the value to Tuesday and Friday, how can I do it?
az datafactory trigger update --factory-name poc-df-01 --resource-group poc-df-rg --name trigger_poc --set properties.recurrence.schedule.weekDays[0]="Tuesday Friday"
It doesn't work, nor other tests I have done:
.weekDays[0]="Tuesday" "Friday"
.weekDays[0]='{"Tuesday","Friday"}'
.weekDays[0]="\"Tuesday\",\"Friday\""
.weekDays[0]="'Tuesday','Friday'"
In all cases includes both days as a string, and In the Portal you can see that no day is selected:
Portal:
I have tried what it states in the Official Doc without success. And I know I am missing something. Probably the stupidest thing xD
How can I do it?