I want to add swimlanes on a sprint board board by field called Booking code. That is a number only free entry field.
I don't understand why I get the green checkmark as if the syntax is ok, but still the error with the operator "=". I tried different combinations and I still get this error.
When I try to add the query I get this error:
When I try to do the same with a different field it works, but that the other field has a drop down menu and not a free entry field.
Does someone know what is this about?
Thanks!
