The price list is a spreadsheet with versions
Sales works from one copy, marketing from another, the agency network from a third. Three answers to one question about one unit.
One base. The price you set is the price everyone reads, including the buyer.
A promotion has to be reassigned by hand
You set “minus 5% on floors 5 to 8”, the next building goes on sale, and somebody has to remember to extend it. Somebody does not.
The promotion is a scope, not a list. New matching units fall under it by themselves.
Payment plans are counted on a calculator
Every manager rounds differently, and the difference surfaces at signing rather than while it can still be fixed.
Terms are set once; the schedule unfolds from them and the buyer sees the same numbers.
You cannot see what is stuck
Which layouts are not moving, where the pace dropped, what is left on the north side. The answer takes a day of spreadsheet work, so nobody asks.
Price per m², sales pace and remaining stock, broken down by any grouping.