I have made an access application that about 8 people at my work use that I have recently replicated. The users get to the replica via a desktop shortcut. Anyways, there are two weeks active fields that always give me a number of problems on synchronizing. Right now I have a button to update them as I don't know how to make a continually updating field that takes an in date and calculates weeks there from todays date. So I have two questions: 1)Is there a way to make a datediff() field that updates each day 2)is there a way to mark certain fields in a table as DO NOT SYNCHRONIZE? I do not care if these fields synchronize as the update button will make either the Design master or the Replicate have the correct weeks. Thanks for your help.