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Hello,
I'm trying to set default value to a branch in parameters and get this error "The expression contains a call of an undefined function GetDefExt()."
Maybe someone can help me with my issue?

Thanks.
Very cool. Interesting idea. I've never thought to try using functions in those Default Data Source Settings fields.
I just did this and it worked:


But I get the same error as you when trying to GetDefExt.
I even tried =AccessInfo.BranchID and, interestingly enough, I get the same error which makes me wonder if GetDefExt() gets called internally.

