Pattern in Tool Switch

i would like to use a pattern in the switch tool to get another output.
pattern: fm\d\d\d (fm + 3 digits)
input text: fm004
Why does it not match?

Thanks in Advance

My guess is you didn’t select yes here:


For the switch tool, all the Pattern fields must be the same type (either TEXT or REGEX depending on the selected radio button).

Thank you very much. Have not seen this option…