Each list can contain 1 or more instance of the same value.
For each value in List A, if it matches a value in List B, ‘delete’ one instance of a matched value in List B.
Ideal result - the whole process runs in one formula (Trial 1).
Current working result - the process runs by extracting to action table (Trial 2).
I have tried to do this every way I can think of to get a the ‘Ideal result’ version of this to work. It seems to be just out of reach for my Coda skills to make happen.