MS Access - the best advice for users is …
I’ve done years of MS Acccess development, for private and government departments. And from a user perspective, there’s always one key bit of advise I give everyone when they get in to trouble.
"Make a mistake, hit Escape’.
"Then hit it again, and again".
You’d be amazed how many problems this solves. So, for any one out there using SAAP NDCA’s Smart, remember, make a mistake, hit escape 
PS, I worked on SMART from Version 3.0 through to 4.1
Good luck to any and all who try to develop for her 