Delimiter does not work

Modeling
1

Hi, I tried to use the delimiter in my expression but it does not work. Is there any wrong here?

kontext(CDM_others){
	kontext(AccountTypeComputationHelper, delimiter = ", ") {
		case [Helper_Client] = "CLIENT"{
			[Helper_Client]" "
		}
		case [Helper_Insurer] = "INSURER"{
			[Helper_Insurer]" "
		}
		case [Helper_Broker] = "BROKER"{
			[Helper_Broker]" "
		}
		case [Helper_Other] = "OTHER"{
			[Helper_Other]" "
		}
	}	
}
2

Hey @van-open-birch,
the Expression looks good to me. Is there an error shown?

The delimiter does only work for Repeatable Groups. So it adds the respective string between each Repetition of the Repeatable Group.
Is AccountTypeComputationHelper repeatable?

(Or do you expect to have ", " between each case output?)
Could you maybe post an example document (data set) and the Expression Output you would expect from it?