Hi! We've already built the payment sorter more or less like this :)
We automatically sort the payment if the IBAN of the payment matches, and a minimum amount. This minimum amount is based on what you've set up: Say you move €600 to your House account for rent, another €200 to Groceries, and €500 to Savings. Now when a payment comes in that's equal to €1,300 (€600 + €200 + €500) and it matches the IBAN, we sort this payment. If the amount is higher than €1,300, the remainder will be moved to the other account.
Hope this clears it up, and have fun sorting your payments! 🌈