At least in Germany, it is problematic if a sent invoice is subsequently manipulated. Therefore, posting a late surcharge directly to the invoice is critical because it changes the invoice itself.
A late surcharge must therefore be created as a reminder fee in a separate invoice, which is not yet possible automatically. Therefore, unfortunately, one cannot use this function and must manually create a reminder (new invoice).
For legal certainty, it is therefore desirable if this requirement is implemented correctly in the future so that one can also use the function.