Our home currency is GBP and we have a wise account in EURO and a wise account in USD. Now we want to transfer money from wise EURO to wise USD account. How does it work?

Hi ir-gawooni-com, thanks for joining the Community; it's not possible to transfer between two currencies directly (that are different from the home currency), instead, you would create a 'holding' account in the home currency to record the transfers to and from (+ New > Transfer), creating a transfer from Euro > GBP and then GBP > USD.