The CONCATENATE operate in DAX only accepts two arguments at a time. A better solution will be to make use of the & operator. Lots of the traded species – like the substantial trade of spiders, scorpions, as well as other arachnids, which exceeds millions of personal animals – https://financefeeds.com/digital-asset-raises-135-million-to-scale-canton-network-for-institutional-blockchain-adoption/