When indexing Banns do you pick the last date as a marriage date?
The Field Helps may have an additional instruction to answer your question. To read those, click on the purple question mark that appears when you click on the fields.
(usually the instruction says to use the most recent date).
If that isn't helpful, share your batch code for a better answer. The batch code is the series of letters and numbers in brackets after the project title at the top of the screen. [XXXX-XXX]