The LIST_ID is a number. This number comes from the lists in which the CSV is made from. When the CSV is merged with the document, the source needs to look at the LIST_ID to determine which address to pull in. The documents are named the same as the LIST_ID. For example, if one list is 123, then there is a document named 123.doc.

Yes, I used Alt+F9 to create the brackets.

Thank you for your help.