Address Database doesn't allow duplicates in zip code column

[egildone]

I created a database of addresses and a labelfile to be used to print mailing labels, but when adding records it doesn't allow duplicates. I need to modify the zip and zip+4 fields to allow duplicates, but can't figure out how to do this. Can someone help me with this?

[F3K Total]

Hi,
can you show how you defined that table?
R

[RoryOF]

That suggests you may have made the zip column as the primary key.