In general, I've found that the makers of Sage 50 almost always make it possible to enter the correct information, and little effort on making certain that the information is correct. 

I would add this to the year end and month end procedures - run the List report of employees sorted hire date, showing vacation weeks and vacation pay rate.  

Except that Sage won't let you add the vacation columns to the report, and no other report shows the hire date, so you'll have build some external report or use a scribbler to keep track.  While automation would be nice, we should at least have decent reporting functionality