Maybe there is an easier solution if you add 2 more hidden parameters to your object, for example shortCode, longCode and then fill them in the paramscript by the user chosen type:

values “type” “Crown A-01”, “Crown A-02”, “Crown A-03”
if type = “Crown A-01” then parameters shortCode = “A-01”, longCode = “A-01 Crown”
if type = “Crown A-02” then parameters shortCode = “A-02”, longCode = “A-02 Crown”
if type = “Crown A-03” then parameters shortCode = “A-03”, longCode = “A-03 Crown”

After you made this, your label could easily ask the values of shortCode and longCode, and you don’t need to split up strings.