Hi
Just to ensure that this conclusively answers any scenario from your question:
Scenario 1: If you want to check this in different instances of the form i.e. when you open a new form, then this will not work since there is no way to effect a check between two instances of a form
Scenario 2: Probably suggested by your post.; if you have a repeat group and you want to ensure that one bar code is not repeated then you may have to take the following steps:
Option Without Using a Repeat Group
References.xls (34.5 KB)
Stephane
