I'm trying to create an appointment book type form that saves its entries to a db (this is a class project--otherwise I'd use the existing wheel and do it with Outlook!).<br><br>I have created a form (or rather had the Vis Data tools create it) that is Wizard-linked to an Access-type db. There is only one table in the db--it's the "Day Appointments" table. Within this table are fields for each of the half hour segments for which appt. entries are to be made/allowed. There are also fields for month / day / year. The primary key is specific date, derived from the form entries. When I enter some appts and try to save the record I get "Error 3426: Another object cancelled the operation." There isn't much descriptive suggestion for causes (actually none at all) in the help, and I don't see what could be wrong--the wizard created the form based on the table and the Dataconnection tests "OK." Could the problem be the empty strings in all of the fields for which there is no appt. entry? (These fields are set to allow zero length strings.)<br><br>Any insight into the problem or the most expeditious debugging course to take would be much appreciated.