Special Business Map for duplicates?

[omarllorens]

cbMaps support the workflow expressions, so you can use the same syntax to get fields values when you create an email task and select fields to compile the email.

For example from if need the Account Industry field from SalesOrder module, the syntax is: $(account_id : (Accounts) industry)

You can try the same but with you custom field. The easy way is trying to create an email task to SalesOrder module to obtain the expression that you need.

Try it, and tell us if work, please.