This message occurs during the conversion of working days tokens, if the string where a national holidays set ID is expected but is of incorrect format (ie a 5-digit number).

➢The expected structure of a working days token is [tWD:XXXXX:ZZZZZ] where XXXXX is the Holidays Set ID of a holidays set containing national holidays, and ZZZZZ is the ID of another holidays set, this one containing regional holidays (if there are no regional holidays, then :ZZZZZ can be omitted).

This message, thus specifically means that the current working days token does contain a holidays set ID of the form :XXXXX, but that XXXXX is not a number.

Topic 183115, last updated on 18-Oct-2026